SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549





                                   SCHEDULE TO


            Tender Offer Statement Under Section 14(d)(1) or 13(e)(1)
                     of the Securities Exchange Act of 1934


                 OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.
                                (Name of Issuer)


                 OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.
                      (Name of Person(s) Filing Statement)


                       LIMITED LIABILITY COMPANY INTERESTS
                         (Title of Class of Securities)


                                       N/A
                      (CUSIP Number of Class of Securities)


                                William J. Landes
                             Larch Lane Advisors LLC
                          800 Westchester Avenue, S-618
                               Rye Brook, NY 10573
                                 (888) 266-2200


 (Name, Address and Telephone Number of Person Authorized to Receive Notices and
           Communications on Behalf of the Person(s) Filing Statement)


                                 With a copy to:


                               George Silfen, Esq.
                            Schulte Roth & Zabel LLP
                                919 Third Avenue
                            New York, New York 10022
                                 (212) 756-2131


                               September 28, 2007
                       (Date Tender Offer First Published,
                       Sent or Given to Security Holders)










CALCULATION OF FILING FEE

- --------------------------------------------------------------------------------
Transaction Valuation:   $1,000,000 (a)    Amount of Filing Fee: $30.70 (b)
- --------------------------------------------------------------------------------

(a)      Calculated as the aggregate maximum purchase price for Interests.

(b)      Calculated at $30.70 per $1,000,000 of the Transaction Valuation.

[ ]      Check the box if any part of the fee is offset as provided by Rule
         0-1l(a)(2) and identify the filing with which the offsetting fee was
         previously paid. Identify the previous filing by registration statement
         number, or the Form or Schedule and the date of its filing.

         Amount Previously Paid:  ________________________
         Form or Registration No.:  ________________________
         Filing Party:  __________________________________
         Date Filed:  ___________________________________

[ ]      Check the box if the filing relates solely to preliminary
         communications made before the commencement of a tender offer.

         Check the appropriate boxes below to designate any transactions to
         which the statement relates:

[ ]      third-party tender offer subject to Rule 14d-1.

[X]      issuer tender offer subject to Rule 13e-4.

[ ]      going-private transaction subject to Rule 13e-3.

[ ]      amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results
of the tender offer:  [ ]





ITEM 1.   SUMMARY TERM SHEET.

          As stated in the  offering  documents  of Old Mutual  Absolute  Return
Master Fund, L.L.C. (the "Company"), the Company is offering to purchase limited
liability  company  interests in the Company  ("Interest" or "Interests," as the
context  requires)  from members of the Company  ("Members")  at their net asset
value  (that  is,  the value of the  Company's  assets  minus  its  liabilities,
multiplied  by the  proportionate  interest in the  Company a Member  desires to
tender).  The offer to purchase  Interests  (the "Offer") will remain open until
12:00 midnight, Eastern time, on October 26, 2007 (the "Expiration Date") unless
the Offer is extended.  The net asset value of the Interests  will be calculated
for this  purpose  as of  December  31,  2007  or,  if the  Offer  is  extended,
approximately  one month after the Expiration Date (in each case, the "Valuation
Date").  The Company reserves the right to adjust the Valuation Date as a result
of any  extension  of the Offer.  The  Company  will  review the net asset value
calculation of Interests  during the Company's  audit for its fiscal year ending
March 31,  2008,  which the Company  expects will be completed by the end of May
2008 and the audited net asset value will be used to determine  the final amount
to be paid for tendered Interests.

          Members may tender their entire Interest,  a portion of their Interest
(defined as a specific  dollar value) or a portion of their  Interest  above the
required  minimum  capital  account  balance.  If a Member  tenders  its  entire
Interest (or a portion of its Interest) and the Company purchases that Interest,
the  Company  will  give  the  Member  an  interest  bearing,   non-transferable
promissory note (the "Note")  entitling the Member to receive an amount equal to
the net asset value of the  Interest  tendered  (valued in  accordance  with the
Company's Limited Liability Company Agreement (the "LLC Agreement")), determined
as of the Valuation Date. The Note will entitle the Member to receive an initial
payment in cash and/or marketable  securities (valued in accordance with the LLC
Agreement)  equal to 97% of the net asset value of the Interest  tendered by the
Member that is accepted for purchase by the Company (the "Initial  Payment") and
will be paid to the Member within one month after the Valuation  Date or, if the
Company has requested  withdrawals  of its capital from any  portfolio  funds in
order to finance the purchase of  Interests,  within ten business days after the
Company  has  received at least 90% of the  aggregate  amount  withdrawn  by the
Company  from such  portfolio  funds.  The Note will also  entitle the Member to
receive a contingent payment (the "Contingent  Payment") equal to the excess, if
any, of (a) the net asset  value of the  Interest  tendered as of the  Valuation
Date,  as it may be adjusted  based upon the next annual audit of the  Company's
financial  statements,  over (b) the Initial Payment.  The Fund will deposit the
aggregate  amount of the  Contingent  Payments in a separate,  interest  bearing
account  and will  pay any  interest  actually  earned  thereon  PRO RATA to the
Members whose Interests have been  repurchased.  The Contingent  Payment will be
payable promptly after the completion of the Company's annual audit. Proceeds of
the Initial Payment and the Contingent Payment will be wire transferred directly
to an account designated by the Member.

          A Member that tenders for  repurchase  only a portion of such Member's
Interest  will be  required  to maintain a minimum  capital  account  balance of
$50,000  (or  $25,000,  in the  case of  certain  Members,  as set  forth in the
offering materials provided to Members).


                                       1





          The  Company  reserves  the right to  purchase  less  than the  amount
tendered by a Member if the amount  tendered  would cause the  Member's  capital
account in the Company to have a value less than the required  minimum  balance.
If the Company  accepts the tender of the Member's  entire Interest or a portion
of such  Member's  Interest,  the Company  will make  payment for  Interests  it
purchases from one or more of the following sources:  cash on hand, the proceeds
of the sale of and/or delivery of portfolio  securities held by the Company, the
withdrawals of its capital from portfolio funds in which it has invested,  or by
borrowings (which the Company does not intend to do).

          The Offer remains open to Members until 12:00 midnight,  Eastern time,
on October 26, 2007, the expected expiration date of the Offer. Until this time,
Members  have the right to change  their minds and withdraw the tenders of their
Interests.  Members  will  also  have the  right to  withdraw  tenders  of their
Interests at any time after  November 27,  2007,  if their  Interest has not yet
been accepted for purchase by the Company.

          If a Member  would like the  Company to  purchase  its  Interest  or a
portion  of its  Interest,  it should  complete,  sign and  either (i) mail (via
certified  mail  return  receipt  requested)  or  otherwise  deliver a Letter of
Transmittal,  attached to this document as Exhibit C, to Citi Fund Services (the
"Transfer  Agent"),  at  3  Canal  Plaza,  Ground  Floor,  Portland,  ME  04101,
Attention:  Tender Offer Administrator,  or (ii) fax it to the Transfer Agent at
(207) 879-6206,  so that it is received before 12:00 midnight,  Eastern time, on
October 26, 2007.  IF THe MEMBER  CHOOSES TO FAX THE LETTER OF  TRANSMITTAL,  IT
SHOULD MAIL THE ORIGINAL  LETTER OF  TRANSMITTAL  TO THE TRANSFER AGENT PROMPTLY
AFTER IT IS FAXED  (ALTHOUGH  THE ORIGINAL  DOES NOT HAVE TO BE RECEIVED  BEFORE
12:00 MIDNIGHT,  EASTERN TIME, ON OCTOBER 26, 2007). Of course, the value of the
Interests  will change  between August 31, 2007 (the last time prior to the date
of this  filing  as of  which  net  asset  value  has been  calculated)  and the
Valuation  Date.  Members  may obtain  the  estimated  net asset  value of their
Interests,  which the Company will calculate  monthly based upon the information
the  Company  receives  from the  managers  of the  portfolio  funds in which it
invests,  by contacting  the Transfer  Agent at (800) 838-0232 or at the address
listed above,  Monday through Friday,  except  holidays,  during normal business
hours of 9:00 a.m. to 5:00 p.m. (Eastern time).  Please see Item 4(a)(1)(ix) for
a discussion  regarding  the  procedures  implemented  in the event the Offer is
oversubscribed (I.E., more than $1 million of Interests are duly tendered).

          Please  note that just as each  Member has the right to  withdraw  the
tender of an  Interest,  the Company has the right to cancel,  amend or postpone
this Offer at any time before 12:00 midnight, Eastern time, on October 26, 2007.
Also realize that  although the Offer expires on October 26, 2007, a Member that
tenders its  Interest  will remain a Member in the Company  notwithstanding  the
Company's acceptance of the Member's Interest for purchase through the Valuation
Date.  Accordingly,  the value of a tendered Interest will remain at risk, until
the  Valuation  Date,  because  of its  investment  pursuant  to  the  Company's
investment program.

ITEM 2.   ISSUER INFORMATION.

          (a) The name of the issuer is Old Mutual  Absolute Return Master Fund,
L.L.C.  The Company is registered  under the Investment  Company Act of 1940, as
amended  (the  "1940  Act"),  as  a  closed-end,   non-diversified,   management
investment company. It is organized


                                       2





as a Delaware limited liability company.  The principal  executive office of the
Company is located at 800 Westchester  Avenue,  S-618, Rye Brook, New York 10573
and the telephone number is (888) 266-2200.

          (b) The title of the  securities  that are the subject of the Offer is
limited liability  company  interests or portions thereof in the Company.  As of
the close of business on August 31, 2007, there was approximately  $11.4 million
outstanding in capital of the Company,  represented  by Interests  (based on the
estimated  unaudited  net  asset  value  of  such  Interests).  Subject  to  the
conditions set forth in the Offer, the Company will purchase up to $1 million of
Interests  that are tendered by Members and not withdrawn as described  above in
Item 1, subject to any extension of the Offer.

          (c) Interests are not traded in any market,  and any transfer  thereof
is strictly limited by the terms of the Company's LLC Agreement.

ITEM 3.   IDENTITY AND BACKGROUND OF FILING PERSON.

          (a) The name of the filing person is Old Mutual Absolute Return Master
Fund,  L.L.C.  The  Company's  principal  executive  office  is  located  at 800
Westchester Avenue, S-618, Rye Brook, New York 10573 and the telephone number is
(888) 266-2200. The Investment Adviser of the Company is Larch Lane Advisors LLC
(the "Adviser").  LLA Holdings LLC, the special member of the Adviser,  owns 75%
of the Adviser and is an indirect  majority-owned  subsidiary of Old Mutual (US)
Holdings  Inc.  ("OMUSH").  The  principal  executive  office of the  Adviser is
located at 800  Westchester  Avenue,  S-618,  Rye Brook,  New York 10573 and the
telephone number is (914) 798-7604. The Company's Managers are Gerald Hellerman,
William J. Landes,  Paul D. Malek and George W.  Morriss.  Their  address is c/o
Larch Lane Advisors LLC, 800  Westchester  Avenue,  S-618,  Rye Brook,  New York
10573.

ITEM 4.   TERMS OF THIS TENDER OFFER.


          (a)(1)(i)  Subject  to the  conditions  set  forth in the  Offer,  the
Company will purchase up to $1 million of Interests that are tendered by Members
and not withdrawn (in accordance with Item 1) prior to 12:00  midnight,  Eastern
time, on the Expiration  Date, or any later date as corresponds to any extension
of the offer.

               (ii) The  purchase price of Interests tendered to the Company for
purchase will be their net asset value as of the Valuation Date.

          Members may tender their entire Interest,  a portion of their Interest
defined as a specific  dollar  value or a portion  of their  Interest  above the
required  minimum  capital account  balance.  Each Member who tenders its entire
Interest or a portion thereof that is accepted for purchase will be given a Note
promptly  upon  acceptance of the Member's  Interest.  The Note will entitle the
Member to be paid an amount equal to the value,  determined  as of the Valuation
Date, of the Interest or portion thereof being purchased  (subject to adjustment
upon completion of the next annual audit of the Company's financial statements).
This amount will be the value of the  Member's  capital  account (or the portion
thereof being purchased) determined as of the


                                       3





Valuation  Date,  and will be based  upon the net asset  value of the  Company's
assets as of that date,  after giving effect to all allocations to be made as of
that date. The Note will entitle the Member to receive an initial  payment in an
amount  equal to at least 97% of the  unaudited  net asset value of the Interest
tendered and  accepted for purchase by the Company.  Payment of this amount will
be made  within  one month  after the  Valuation  Date or,  if the  Company  has
requested  withdrawals of its capital from any portfolio  funds in order to fund
the purchase of Interests, no later than ten business days after the Company has
received at least 90% of the aggregate amount withdrawn by the Company from such
portfolio  funds.  The Note will also entitle a Member to receive the Contingent
Payment. The Contingent Payment will be payable promptly after the completion of
the Company's next annual audit. It is anticipated  that the annual audit of the
Company's financial  statements will be completed within 60 days after March 31,
2008, the fiscal year end of the Company.

          Although  the Company has  retained the option to pay all or a portion
of the purchase price by distributing marketable securities,  the purchase price
will be paid  entirely  in cash except in the  unlikely  event that the Board of
Managers  of the Company  determines  that the  distribution  of  securities  is
necessary to avoid or mitigate any adverse  effect of the Offer on the remaining
Members.

          The Note pursuant to which a tendering Member will receive the Initial
Payment and Contingent  Payment  (together,  the "Cash  Payment") will be mailed
directly to the tendering Member. Any Cash Payment due pursuant to the Note will
be made  by  wire  transfer  directly  to the  tendering  Member  to an  account
designated by the Member.

          A Member who tenders for  repurchase  only a portion of such  Member's
Interest  will be  required  to maintain a minimum  capital  account  balance of
$50,000  (or  $25,000,  in the  case of  certain  Members,  as set  forth in the
offering materials provided to the Members).

          A copy of: (a) the Cover Letter to the Offer to Purchase and Letter of
Transmittal;  (b)  Notice  of the  Offer to  Purchase;  (c) a form of  Letter of
Transmittal;  (d) a form of Notice of  Withdrawal  of  Tender;  and (e) forms of
Letters  from the Company to Members  that will be sent in  connection  with the
Company's acceptance of tenders of Interests, are attached hereto as Exhibits A,
B, C, D and E, respectively.

              (iii)  The  scheduled  expiration  date  of  the  Offer  is  12:00
midnight, Eastern time, October 26, 2007.

               (iv) Not Applicable.

                (v) The  Company  reserves  the right, at any time and from time
to time,  to extend  the  period of time  during  which the Offer is  pending by
notifying Members of such extension.  The purchase price of an Interest tendered
by any Member will be the net asset value thereof as of the close of business on
December 31, 2007 if the Offer expires on the initial Expiration Date or, if the
Offer is extended, approximately one month after the Expiration Date. During any
such extension,  all Interests previously tendered and not withdrawn will remain
subject to the Offer.  The Company also reserves the right, at any time and from
time to time, up


                                       4





to  and  including  the  Expiration  Date,  to:  (a)  cancel  the  Offer  in the
circumstances  set  forth in  Section  7 of the  Offer  and in the event of such
cancellation,  not to purchase or pay for any Interests tendered pursuant to the
Offer; (b) amend the Offer; and (c) postpone the acceptance of Interests. If the
Company determines to amend the Offer or to postpone the acceptance of Interests
tendered,  it will,  to the extent  necessary,  extend the period of time during
which the Offer is open as provided above and will promptly notify Members.

               (vi) A  tender of Interests  may be withdrawn at  any time before
12:00  midnight,  Eastern time,  October 26, 2007 and, if Interests have not yet
been accepted for purchase by the Company, at any time after November 27, 2007.

              (vii) Members  wishing to  tender  Interests pursuant to the Offer
should mail a completed  and  executed  Letter of  Transmittal  to the  Transfer
Agent, to the attention of Tender Offer Administrator,  at the address set forth
on page 2 of the Offer, or fax a completed and executed Letter of Transmittal to
the Transfer Agent, also to the attention of Tender Offer Administrator,  at the
fax number set forth on page 2 of the Offer.  The completed and executed  Letter
of Transmittal must be received by the Transfer Agent, either by mail or by fax,
no later than the Expiration Date. The Company  recommends that all documents be
submitted to the Transfer Agent by certified mail, return receipt requested,  or
by facsimile  transmission.  A Member choosing to fax a Letter of Transmittal to
the Transfer Agent must also send or deliver the original completed and executed
Letter of Transmittal to the Transfer Agent promptly thereafter.

          Any  Member  tendering  an Interest pursuant to the Offer may withdraw
its tender as  described  above in Item 4(vi).  To be  effective,  any notice of
withdrawal  must be timely  received by the Transfer Agent at the address or fax
number  set  forth  on page 2 of the  Offer.  A form to use to  give  notice  of
withdrawal  of a tender  is  available  by  calling  the  Transfer  Agent at the
telephone  number  indicated  on page 2 of the  Offer.  A  tender  of  Interests
properly  withdrawn will not thereafter be deemed to be tendered for purposes of
the  Offer.  However,  subsequent  to  the  withdrawal  of  tendered  Interests,
Interests may be tendered  again prior to the  Expiration  Date by following the
procedures described above.

             (viii)  For  purposes of  the Offer, the  Company will be deemed to
have accepted (and thereby purchased)  Interests that are tendered when it gives
written notice to the tendering Member of its election to purchase such Member's
Interest.

               (ix)  If more than $1 million  of Interests  are duly tendered to
the Company prior to the Expiration  Date and not withdrawn,  the Company may in
its sole  discretion:  (a)  accept  the  additional  Interests  permitted  to be
accepted pursuant to Rule  13e-4(f)(1)(ii)  under the Securities Exchange Act of
1934, as amended (the "1934 Act"); or (b) amend and extend the Offer to increase
the amount of Interests  that the Company is offering to purchase.  In the event
the amount of  Interests  duly  tendered  exceeds  the amount of  Interests  the
Company has offered to purchase  pursuant to the Offer or any amendment  thereof
(including  the  amount of  Interests,  if any,  the  Company  may be willing to
purchase as permitted by Rule  13e-4(f)(1)(ii)  under the 1934 Act), the Company
will accept Interests duly tendered on or before the Expiration Date for payment
on a PRO RATA basis based on the aggregate net asset value of


                                       5





tendered  Interests.  The Offer may be extended,  amended or canceled in various
other circumstances described in (v) above.

                (x) The purchase of Interests pursuant to the Offer may have the
effect of increasing the proportionate interest in the Company of Members who do
not tender  Interests.  Members  that retain their  Interests  may be subject to
increased  risks that may possibly  result from the  reduction in the  Company's
aggregate assets resulting from payment for the Interests tendered.  These risks
include the potential for greater  volatility due to decreased  diversification.
However,  the Company  believes that this result is unlikely given the nature of
the Company's  investment  program.  A reduction in the aggregate  assets of the
Company may result in Members that do not tender Interests  bearing higher costs
to the extent that certain  expenses borne by the Company are  relatively  fixed
and may not  decrease  if  assets  decline.  These  effects  may be  reduced  or
eliminated to the extent that additional subscriptions for Interests are made by
new and existing Members on October 1, 2007 and thereafter from time to time.

               (xi) Not Applicable.

              (xii) The following discussion is a general summary of the Federal
income tax consequences of the purchase of Interests by the Company from Members
pursuant to the Offer.  Members  should  consult  their own tax  advisors  for a
complete  description  of the tax  consequences  to them of a purchase  of their
Interests by the Company pursuant to the Offer.

          In  general,  a Member  from which an  Interest  is  purchased  by the
Company  will be treated as  receiving a  distribution  from the  Company.  Such
Member  generally will not recognize income or gain as a result of the purchase,
except to the extent (if any) that the amount of  consideration  received by the
Member exceeds such Member's then adjusted tax basis in such Member's  Interest.
A Member's  basis in such  Interest  will be adjusted  for income,  gain or loss
allocated (for tax purposes) to such Member for periods prior to the purchase of
such Interest.  Cash distributed to a Member in excess of the adjusted tax basis
of such  Member's  Interest  is taxable as a capital  gain or  ordinary  income,
depending on the circumstances.  A Member that has its entire Interest purchased
by the Company may generally  recognize a loss,  but only to the extent that the
amount of consideration received from the Company is less than the Member's then
adjusted tax basis in such Member's Interest.

          (a) Not Applicable.

          (b) Not Applicable.

          (c) Not Applicable.

          (d) Not Applicable.

          (e) Not Applicable.

          (f) Not Applicable.


                                       6





ITEM 5.   PAST CONTRACTS, TRANSACTIONS, NEGOTIATIONS AND AGREEMENTS WITH RESPECT
          TO THE ISSUER'S SECURITIES.

          The  Company's  LLC  Agreement,  which was  provided to each Member in
advance of  subscribing  for  Interests,  provides that the  Company's  Board of
Managers has the sole discretion to determine  whether the Company will purchase
Interests  from  Members  from time to time  pursuant  to written  tenders.  The
Adviser expects that it will recommend to the Board of Managers that the Company
purchase  Interests from Members  quarterly,  effective as of March 31, June 30,
September 30 and December 31, in accordance with the offering  materials of such
Members. This is the Company's first offer to purchase Interests from Members.

          The Company is not aware of any contract,  arrangement,  understanding
or relationship relating,  directly or indirectly, to this tender offer (whether
or not  legally  enforceable)  between:  (i) the  Company and the Adviser or any
Manager of the Company or any person  controlling the Company or controlling the
Adviser or any  Manager of the  Company;  and (ii) any person,  with  respect to
Interests.  However,  the LLC  Agreement  provides  that  the  Company  shall be
dissolved if the Interest of any Member that has submitted a written request, in
accordance  with the terms of the LLC Agreement,  to tender its entire  Interest
for  purchase  by the Company  has not been  repurchased  within a period of two
years of the request.

ITEM 6.   PURPOSES  OF THIS TENDER OFFER AND PLANS OR PROPOSALS OF THE ISSUER OR
          AFFILIATE.

          (a) The purpose of the Offer is to provide  liquidity  to Members that
hold  Interests,  as  contemplated  by and in accordance with the procedures set
forth in the LLC Agreement.

          (b) The Company  currently  expects that it will accept  subscriptions
for  Interests  as of  October  1,  2007  and on the  first  day of  each  month
thereafter, but is under no obligation to do so.

          (c) Neither the Company nor the Adviser nor the Board of Managers  has
any plans or proposals that relate to or would result in: (1) the acquisition by
any person of additional Interests (other than the Company's intention to accept
subscriptions for Interests on the first day of each month and from time to time
in the  discretion  of the Company),  or the  disposition  of Interests;  (2) an
extraordinary  transaction,  such as a merger,  reorganization  or  liquidation,
involving  the  Company;  (3) any  material  change in the present  distribution
policy or indebtedness or capitalization  of the Company;  (4) any change in the
identity  of the  Adviser  or the  members of the Board of  Managers,  or in the
management of the Company including,  but not limited to, any plans or proposals
to change the number or the term of  members of the Board of  Managers,  to fill
any existing  vacancy on the Board of Managers or to change any material term of
the investment advisory arrangements with the Adviser; (5) a sale or transfer of
a material  amount of assets of the Company (other than as the Board of Managers
determines  may be  necessary  or  appropriate  to fund all or a portion  of the
purchase  price  for  Interests  to be  acquired  pursuant  to the  Offer  or in
connection with the ordinary  portfolio  transactions  of the Company);  (6) any
other  material  change in the  Company's  structure or business,  including any
plans or


                                       7





proposals  to make  any  changes  in its  fundamental  investment  policies,  as
amended,  for which a vote would be  required  by Section 13 of the 1940 Act; or
(7) any changes in the LLC  Agreement  or other  actions  that might  impede the
acquisition of control of the Company by any person.  Because  Interests are not
traded in any market,  Sections (6), (7) and (8) of Regulation M-A ss.  229.1006
(c) are not applicable to the Company.

ITEM 7.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

          (a) The Company expects that the purchase price for Interests acquired
pursuant  to the Offer,  which will not exceed $1 million  (unless  the  Company
elects to purchase a greater  amount),  will be derived  from one or more of the
following  sources:  (i) cash on hand;  (ii) the  proceeds of the sale of and/or
delivery of  securities  and  portfolio  assets held by the  Company;  and (iii)
possibly  borrowings,  as described in paragraph  (b),  below.  The Company will
segregate,  with its  custodian,  cash or U.S.  government  securities  or other
liquid  securities  equal to the value of the amount  estimated to be paid under
any Notes as described above.

          (b) None of the  Company,  the  Adviser or the Board of  Managers  has
determined  at this time to  borrow  funds to  purchase  Interests  tendered  in
connection with the Offer. However,  depending on the dollar amount of Interests
tendered and prevailing general economic and market conditions,  the Company, in
its sole  discretion,  may decide to seek to borrow  money to  finance  all or a
portion  of the  purchase  price  for  Interests,  subject  to  compliance  with
applicable  law. If the Company  finances any portion of the  purchase  price in
that  manner,  it will  deposit  assets in a special  custody  account  with its
custodian,  to serve as  collateral  for any  amounts  so  borrowed,  and if the
Company were to fail to repay any such amounts,  the lender would be entitled to
satisfy the Company's  obligations from the collateral  deposited in the special
custody account.  The Company expects that the repayment of any amounts borrowed
will be made from additional funds contributed to the Company by existing and/or
new Members, or from the proceeds of the sale of securities and portfolio assets
held by the Company.

          (c) Not Applicable.

          (d) Not Applicable.

ITEM 8.   INTEREST IN SECURITIES OF THE ISSUER.

          (a)  Based  on  August  31,  2007,   estimated   values,   OMUSH  owns
approximately  $1.1 million in Interests  (approximately  9% of the  outstanding
Interests).

          (b) There  have been no  transactions  involving  Interests  that were
effected during the past 60 days by the Company, the Adviser, any Manager or any
person controlling the Company, the Adviser or any Manager.


ITEM 9.   PERSONS/ASSETS RETAINED, EMPLOYED, COMPENSATED OR USED.

          No persons have been  employed,  retained or are to be  compensated by
the Company to make  solicitations  or  recommendations  in connection  with the
Offer.


                                       8






ITEM 10.  FINANCIAL STATEMENTS.


          (a)(1) Reference is made to the following financial  statements of the
Company,  which the Company has  prepared and  furnished to Members  pursuant to
Rule  30e-l  under  the 1940 Act and  filed  with the  Securities  and  Exchange
Commission   pursuant  to  Rule  30b2-1  under  the  1940  Act,  and  which  are
incorporated  by  reference  in their  entirety  for the  purpose of filing this
Schedule TO:


          Audited financial statements for  the fiscal year ended March 31, 2007
          previously filed on EDGAR on Form N-CSR on June 8, 2007.

          (2) The  Company  is not  required  to and  does  not  file  quarterly
unaudited  financial  statements  under the 1934 Act.  The Company does not have
shares, and consequently does not have earnings per share information.

          (3) Not Applicable.

          (4) The Company does not have shares,  and consequently  does not have
book value per share information.

          (b) The Company's assets will be reduced by the amount of the tendered
Interests that are repurchased by the Company.  Thus,  income relative to assets
may be affected by the Offer.  The Company does not have shares and consequently
does not have earnings or book value per share information.


ITEM 11.  ADDITIONAL INFORMATION.

          (a)(1)   None.

             (2)   None.

             (3)   Not Applicable.

             (4)   Not Applicable.

             (5)   None.


          (b) None.


ITEM 12.  EXHIBITS.

          Reference is hereby made to the following  exhibits which collectively
constitute the Offer to Members and are incorporated herein by reference:

             A.    Cover Letter to the Notice of Offer to Purchase and Letter of
                   Transmittal.

             B.    Notice of Offer to Purchase.


                                       9






             C.    Form of Letter of Transmittal.

             D.    Form of Notice of Withdrawal of Tender.

             E.    Forms  of Letters from the  Company to Members  in connection
                   with the Company's acceptance of tenders of Interests.




                                       10







                                    SIGNATURE


          After  due  inquiry  and to the best of my  knowledge  and  belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.


                                  OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.

                                  By: /s/ William J. Landes
                                      --------------------------------
                                      Name: William J. Landes
                                      Title:  President


September 28, 2007





                                       11





                                  EXHIBIT INDEX


                                     EXHIBIT


A   Cover Letter to the Notice of Offer to Purchase and Letter of Transmittal.

B   Notice of Offer to Purchase.

C   Form of Letter of Transmittal.

D   Form of Notice of Withdrawal of Tender.

E   Forms of Letters from the Company to Members in Connection with the
    Company's Acceptance of Tenders of Interests.










                                    EXHIBIT A


    Cover Letter to the Notice of Offer to Purchase and Letter of Transmittal


                 OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.


       IF YOU DO NOT WANT TO SELL YOUR LIMITED LIABILITY COMPANY INTERESTS
                   AT THIS TIME, PLEASE DISREGARD THIS NOTICE.


          THIS IS SOLELY A NOTIFICATION OF THE COMPANY'S TENDER OFFER.


September 28, 2007

          Dear Old Mutual Absolute Return Master Fund, L.L.C. Member:

          We are writing to inform you of important  dates  relating to a tender
offer by Old Mutual Absolute Return Master Fund, L.L.C. (the "Company").  If you
are not interested in tendering your limited  liability company interests in the
Company  ("Interest"  or  "Interests,"  as the context  requires)  at this time,
please disregard this notice and take no action.

          The tender offer period will begin on September  28, 2007 and will end
at 12:00 midnight,  Eastern time, on October 26, 2007. The purpose of the tender
offer is to provide  liquidity to members that hold Interests.  Interests may be
presented to the Company for purchase  only by tendering  them during one of the
Company's announced tender offers.

          Should you wish to tender your Interest or a portion of your Interest
for purchase by the Company during this tender offer period, please complete and
return the enclosed Letter of Transmittal in the enclosed postage-paid envelope
or by fax so that it arrives no later than October 26, 2007. If you do not wish
to tender your Interests, simply disregard this notice. NO ACTION IS REQUIRED IF
YOU DO NOT WISH TO TENDER ANY PORTION OF YOUR INTEREST AT THIS TIME.

          All tenders of Interests  must be received by the  Company's  Transfer
Agent,  Citi Fund Services,  either by mail or by fax (if by fax, please deliver
an original,  executed  copy promptly  thereafter)  in good order by October 26,
2007.

          If you have any  questions,  please  refer  to the  attached  Offer to
Purchase document,  which contains  additional  important  information about the
tender offer, or call your Account  Executive or Tender Offer  Administrator  at
our Transfer Agent at (800) 838-0232.


Sincerely,


Old Mutual Absolute Return Master Fund, L.L.C.



                                      A-1






                                    EXHIBIT B


                           Notice of Offer to Purchase


                     Old Mutual Absolute Return Master Fund, L.L.C.
                          800 Westchester Avenue, S-618
                               Rye Brook, NY 10573
                                 (888) 266-2200


                OFFER TO PURCHASE UP TO $1 MILLION OF OUTSTANDING
                          INTERESTS AT NET ASSET VALUE
                            DATED SEPTEMBER 28, 2007


                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
                 12:00 MIDNIGHT, EASTERN TIME, OCTOBER 26, 2007,
                          UNLESS THE OFFER IS EXTENDED

To the Members of Old Mutual Absolute Return Master Fund, L.L.C.:

          Old  Mutual  Absolute  Return  Master  Fund,   L.L.C.,  a  closed-end,
non-diversified,  management  investment company organized as a Delaware limited
liability company (the "Company"), is offering to purchase for cash on the terms
and conditions set forth in this offer to purchase ("Offer to Purchase") and the
related  Letter  of  Transmittal  (which  together  with the  Offer to  Purchase
constitutes  the  "Offer")  up to $1  million  of  Interests  in the  Company or
portions thereof pursuant to tenders by members of the Company  ("Members") at a
price  equal to their net asset  value as of  December  31,  2007,  if the Offer
expires on October 26,  2007,  or, if the Offer is extended,  approximately  one
month  after the  expiration  date of the Offer (in each  case,  the  "Valuation
Date").  (As used in this Offer,  the term  "Interest"  or  "Interests,"  as the
context  requires,  shall refer to the  interests  in the  Company and  portions
thereof representing beneficial interests in the Company.) If the Company elects
to extend the tender period,  for the purpose of determining  the purchase price
for tendered Interests, the net asset value of such Interests will be determined
at the close of business on the Valuation  Date. This Offer is being made to all
Members  and is not  conditioned  on  any  minimum  amount  of  Interests  being
tendered,  but is subject to certain conditions  described below.  Interests are
not  traded  on any  established  trading  market  and  are  subject  to  strict
restrictions  on  transferability  pursuant to the Company's  Limited  Liability
Company Agreement (the "LLC Agreement"), if applicable.

          Members  should  realize that the value of the  Interests  tendered in
this Offer likely will change  between  August 31, 2007 (the last time net asset
value was calculated) and the Valuation Date.  Members tendering their Interests
should also note that they will remain  Members in the Company,  with respect to
the Interest  tendered  and  accepted  for purchase by the Company,  through the
Valuation  Date.  Accordingly,  the value of a tendered  Interest will remain at
risk  until the  Valuation  Date,  because  of its  investment  pursuant  to the
Company's investment program.





Old Mutual Absolute Return Master Fund, L.L.C.


          Any  tendering  Members  that wish to obtain the  estimated  net asset
value of their Interests should contact the Company's  transfer agent, Citi Fund
Services (the "Transfer  Agent"),  at the telephone numbers or address set forth
below, Monday through Friday,  except holidays,  during normal business hours of
9:00 a.m. to 5:00 p.m.  (Eastern  time).  Members  desiring to tender all or any
portion of their  Interests  in  accordance  with the terms of the Offer  should
complete and sign the attached  Letter of Transmittal  and mail or fax it to the
Company in the manner set forth in Section 4 below.

                                    IMPORTANT

                  None of the Company, its investment adviser or its Board of
Managers makes any recommendation to any Member as to whether to tender or
refrain from tendering Interests. Members must make their own decisions whether
to tender Interests, and, if they choose to do so, the portion of their
Interests to tender.

          Because each Member's  investment decision is a personal one, based on
its  financial  circumstances,  no  person  has  been  authorized  to  make  any
recommendation  on behalf of the  Company as to whether  Members  should  tender
Interests  pursuant  to the  Offer.  No person has been  authorized  to give any
information or to make any  representations  in connection  with the Offer other
than those contained  herein or in the letter of transmittal.  If given or made,
such recommendation and such information and representations  must not be relied
on as having been authorized by the Company.

          This   transaction  has  not  been  approved  or  disapproved  by  the
Securities  and  Exchange  Commission  (the  "SEC") nor has the SEC or any state
securities commission passed on the fairness or merits of such transaction or on
the  accuracy or adequacy of the  information  contained in this  document.  Any
representation to the contrary is unlawful.

          Questions  and requests  for  assistance  and requests for  additional
copies of the Offer may be directed to the Transfer Agent.


                                    Citi Fund Services
                                    3 Canal Plaza, Ground Floor
                                    Portland, ME 04101
                                    Attention:  Tender Offer Administrator

                                    Phone:  (800) 838-0232
                                    Fax: (207) 879-6206




                                      B-2





Old Mutual Absolute Return Master Fund, L.L.C.


                                TABLE OF CONTENTS

1.  BACKGROUND AND PURPOSE OF THE OFFER.......................................6

2.  OFFER TO PURCHASE AND PRICE...............................................7

3.  AMOUNT OF TENDER..........................................................7

4.  PROCEDURE FOR TENDERS.....................................................8

5.  WITHDRAWAL RIGHTS.........................................................8

6.  PURCHASES AND PAYMENT.....................................................9

7.  CERTAIN CONDITIONS OF THE OFFER..........................................10

8.  CERTAIN INFORMATION ABOUT THE COMPANY....................................11

9.  CERTAIN FEDERAL INCOME TAX CONSEQUENCES..................................12

10. MISCELLANEOUS............................................................12




                                      B-3





Old Mutual Absolute Return Master Fund, L.L.C.


                               SUMMARY TERM SHEET

    o     As stated in the  offering  documents  of Old Mutual  Absolute  Return
          Master  Fund,  L.L.C.  (hereinafter  "we" or the  "Company"),  we will
          purchase  your limited  liability  company  interests  ("Interest"  or
          "Interests"  as the context  requires)  at their net asset value (that
          is,  the  value  of  the  Company's   assets  minus  its  liabilities,
          multiplied by the proportionate  interest in the Company you desire to
          tender).  This offer to purchase  Interests  (the "Offer") will remain
          open until 12:00  midnight,  Eastern  time, on October 26, 2007 unless
          the Offer is extended (the "Expiration Date").

    o     The net  asset  value of the  Interests  will be  calculated  for this
          purpose  as of  December  31,  2007  or,  if the  Offer  is  extended,
          approximately  one month after the Expiration  Date (in each case, the
          "Valuation  Date").  The  Company  reserves  the right to  adjust  the
          Valuation Date as a result of any extension of the Offer.  The Company
          will review the net asset value  calculation  of the Interests  during
          the Company's  audit for its fiscal year ending March 31, 2008,  which
          the Company  expects  will be completed by the end of May 2008 and the
          audited net asset  value will be used to  determine  the final  amount
          paid for tendered Interests.

    o     You may  tender  your  entire  Interest,  a portion  of your  Interest
          defined as a specific dollar value or a portion of your Interest above
          the  required  minimum  capital  account  balance.  If you tender your
          entire  Interest (or a portion of your  Interest) and we purchase that
          Interest,  we will  give you a an  interest-bearing,  non-transferable
          promissory  note (the "Note")  entitling you to an amount equal to the
          net asset value of the Interest  tendered  (valued in accordance  with
          the  Company's   Limited   Liability   Company   Agreement  (the  "LLC
          Agreement"), determined as of the Valuation Date.

    o     The Note  will be  mailed to you and will  entitle  you to an  initial
          payment in cash and/or marketable  securities (valued according to the
          LLC  Agreement)  equal to 97% of the net asset  value of the  Interest
          (the "Initial Payment") which will be paid to you within 30 days after
          the Valuation  Date or, if we have  requested  withdrawals  of capital
          from  any  portfolio  funds  in  order  to  finance  the  purchase  of
          Interests,  ten business  days after we have  received at least 90% of
          the aggregate amount withdrawn from such portfolio funds.

    o     The  Note  will  also  entitle  you  to  a  contingent   payment  (the
          "Contingent  Payment")  equal to the  excess,  if any,  of (a) the net
          asset value of the Interest  tendered as of the Valuation  Date (as it
          may be  adjusted  based upon the next  annual  audit of the  Company's
          financial  statements)  over (b) the  Initial  Payment.  The Fund will
          deposit the aggregate amount of the Contingent Payments in a separate,
          interest  bearing  account and will pay any interest  actually  earned
          thereon PRO RATA to the Members whose Interests have been



                                      B-4





Old Mutual Absolute Return Master Fund, L.L.C.


          repurchased. The Contingent Payment will be payable promptly after the
          completion of the Company's next annual audit.

    o     If you tender only a portion of your  Interest you will be required to
          maintain a minimum capital account balance of $50,000 (or $25,000,  in
          the case of certain  Members,  as set forth in the offering  materials
          provided to the  Members).  We reserve the right to purchase less than
          the amount you tender if the purchase would cause your capital account
          to have less than the required minimum balance.

    o     If we accept the tender of your  entire  Interest or a portion of your
          Interest,   we  will  pay  you  your  proceeds  from:  cash  on  hand,
          withdrawals  of  capital  from  the  portfolio  funds in which we have
          invested,  the  proceeds of the sale of and/or  delivery of  portfolio
          securities  held by the Company  and/or by  borrowing  if the Offer is
          extended (which we do not intend to do).

    o     Following  this summary is a formal  notice of our offer to repurchase
          your  Interests.  Our Offer remains open to you until 12:00  midnight,
          Eastern time, on October 26, 2007, the expected expiration date of the
          Offer.  Until  that time,  you have the right to change  your mind and
          withdraw any tender of your Interest.  You will also have the right to
          withdraw  the tender of your  Interest at any time after  November 27,
          2007, assuming your Interest has not yet been accepted for repurchase.

    o     If you would like us to repurchase  your Interest or a portion of your
          Interest, you should (i) mail the Letter of Transmittal, enclosed with
          the Offer,  to Citi Fund  Services,  at 3 Canal Plaza,  Ground  Floor,
          Portland, ME 04101, Attention: Tender Offer Administrator, or (ii) fax
          it to the  Transfer  Agent at (207)  879-6206,  so that it is received
          before 12:00  midnight,  Eastern time, on October 26, 2007. IF YOU FAX
          THE LETTER OF  TRANSMITTAL,  YOU SHOULD  MAIL THE  ORIGINAL  LETTER OF
          TRANSMITTAL  TO THE TRANSFER AGENT PROMPTLY AFTER YOU FAX IT (ALTHOUGH
          THE  ORIGINAL  DOES NOT HAVE TO BE  RECEIVED  BEFORE  12:00  MIDNIGHT,
          EASTERN TIME, ON OCTOBER 26, 2007).

    o      The value of your  Interests will change between August 31, 2007 (the
          last time net asset value was calculated) and the Valuation Date.

    o     If you would  like to obtain  the  estimated  net asset  value of your
          Interest,  which we calculate  monthly,  based upon the information we
          receive from the managers of the investment  funds in which we invest,
          you may contact the Transfer Agent at (800) 838-0232 or at the address
          listed above,  Monday through Friday,  except holidays,  during normal
          business hours of 9:00 a.m. to 5:00 p.m. (Eastern time).

    o     If more than $1 million of Interests  are duly tendered to the Company
          prior to the Expiration  Date and not withdrawn  pursuant to Section 5
          below,  the



                                      B-5





Old Mutual Absolute Return Master Fund, L.L.C.


          Company will in its sole  discretion  either (a) accept the additional
          Interests  permitted to be accepted  pursuant to Rule  13e-4(f)(1)(ii)
          under the  Securities  Exchange  Act of 1934,  as  amended  (the "1934
          Act");  or (b) amend and  extend the Offer to  increase  the amount of
          Interests  that the Company is offering to purchase.  In the event the
          amount of Interests duly tendered  exceeds the amount of Interests the
          Company has offered to purchase pursuant to the Offer or any amendment
          thereof (including the amount of Interests, if any, the Company may be
          willing to purchase as  permitted  by Rule  13e-4(f)(1)(ii)  under the
          1934 Act),  the Company  will  accept  Interests  duly  tendered on or
          before the  Expiration  Date for  payment on a PRO rata basis based on
          the aggregate net asset value of tendered Interests.

    o     Please note that just as you have the right to withdraw  the tender of
          an Interest, we have the right to cancel, amend or postpone this Offer
          at any time before 12:00 midnight,  Eastern time, on October 26, 2007.
          Also realize that although the Offer expires on October 26, 2007,  you
          will  remain a Member of the  Company,  with  respect to the  Interest
          tendered  and  accepted  for  purchase  by the  Company,  through  the
          Valuation Date. Accordingly,  the value of your tendered interest will
          remain at risk until the  Valuation  Date,  because of its  investment
          pursuant to the Company's investment program.

          1.  BACKGROUND AND PURPOSE OF THE OFFER.  The purpose of this Offer is
to provide  liquidity to Members who hold  Interests,  as contemplated by and in
accordance with the procedures set forth in the Company's LLC Agreement. The LLC
Agreement,  which was  provided  to each  Member in advance of  subscribing  for
Interests,  provides that the Board of Managers has the  discretion to determine
whether the Company  will  purchase  Interests  from  Members  from time to time
pursuant to written tenders.  Larch Lane Advisors LLC, the investment adviser of
the Company  (the  "Adviser"),  expects  that it will  recommend to the Board of
Managers that the Company purchase Interests from Members  quarterly,  effective
as of March 31, June 30,  September 30 and December 31, in  accordance  with the
offering  materials  of such  Members.  This is the  Company's  first  offer  to
purchase  Interests from Members.  Because there is no secondary  trading market
for Interests and transfers of Interests are  prohibited  without prior approval
of the Company,  the Board of Managers has determined,  after  consideration  of
various  matters,  that the Offer is in the best interest of Members in order to
provide  liquidity  for Interests as  contemplated  in the LLC  Agreement.  Such
matters include, but are not limited to, the following: whether any Members have
requested the Company to repurchase  their  Interests or portions  thereof;  the
liquidity of the Company's  assets;  the  investment  plans and working  capital
requirements of the Company; the relative economies of scale with respect to the
size of the Company; the history of the Company in repurchasing  Interests;  the
economic  condition  of  the  securities   markets;   and  the  anticipated  tax
consequences of any proposed repurchases of Interests or portions thereof.

          The purchase of Interests pursuant to the Offer may have the effect of
increasing  the  proportionate  interest in the  Company of Members  that do not
tender  Interests.  Members  that  retain  their  Interests  may be  subject  to
increased risks due to the reduction in the Company's aggregate assets resulting
from payment for the Interests  tendered.  These risks include the


                                      B-6





Old Mutual Absolute Return Master Fund, L.L.C.


potential for greater volatility due to decreased diversification.  However, the
Company  believes that this result is unlikely given the nature of the Company's
investment  program.  A  reduction  in the  aggregate  assets of the Company may
result in  Members  that do not tender  Interests  bearing  higher  costs to the
extent that certain  expenses borne by the Company are relatively  fixed and may
not decrease if assets  decline.  These  effects may be reduced or eliminated to
the extent  that  additional  subscriptions  for  Interests  are made by new and
existing Members on October 1, 2007 and thereafter from time to time.


          The Company  currently  expects that it will accept  subscriptions for
Interests  as of October 1, 2007 and on the first day of each month  thereafter,
but is under no obligation to do so.

          2. OFFER TO  PURCHASE  AND PRICE.  Subject  to the  conditions  of the
Offer, the Company will purchase up to $1 million of Interests that are tendered
by Members and not withdrawn (in accordance with Section 5 below) prior to 12:00
midnight,  Eastern time, on October 26, 2007 or any later date as corresponds to
any extension of the Offer (in each case, the  "Expiration  Date").  The Company
reserves the right to extend, amend or cancel the Offer as described in Sections
3 and 7 below. The purchase price of an Interest  tendered will be its net asset
value as of the Valuation  Date,  payable as set forth in Section 6. The Company
reserves the right to adjust the Valuation  Date as a result of any extension of
the Offer.

          As  of  the  close  of  business  on  August  31,   2007,   there  was
approximately  $11.4  million  outstanding  in  capital of the  Company  held in
Interests (based on the estimated  unaudited net asset value of such Interests).
Members may obtain  monthly  estimated  net asset value  information,  which the
Company  calculates  based upon the information it receives from the managers of
the portfolio  funds in which the Company  invests,  until the expiration of the
Offer,  by contacting the Transfer Agent at the telephone  number or address set
forth on page 2, Monday through Friday, except holidays,  during normal business
hours of 9:00 a.m. to 5:00 p.m. (Eastern time).

          3.  AMOUNT OF TENDER.  Subject  to the  limitations  set forth  below,
Members may tender their entire Interest, a portion of their Interest defined as
a specific  dollar  value or the portion of their  Interest  above the  required
minimum capital account  balance,  as described below. A Member that tenders for
repurchase only a portion of its Interest will be required to maintain a minimum
capital account balance of $50,000 (or $25,000,  in the case of certain Members,
as set forth in the offering  materials  provided to the  Members).  If a Member
tenders an amount that would cause the Member's  capital account balance to fall
below the required minimum,  the Company reserves the right to reduce the amount
to be  purchased  from  such  Member so that the  required  minimum  balance  is
maintained. The Offer is being made to all Members and is not conditioned on any
minimum amount of Interests being tendered.

          If the amount of Interests that are properly  tendered pursuant to the
Offer and not withdrawn  pursuant to Section 5 below is less than or equal to $1
million (or such greater amount as the Company may elect to purchase pursuant to
the Offer),  the Company will, on the terms and subject to the conditions of the
Offer,  purchase all of the Interests so tendered  unless the Company  elects to
cancel or amend the Offer,  or postpone  acceptance  of tenders made pursuant to
the Offer,  as provided in Section 7 below. If more than $1 million of Interests
are


                                      B-7





Old Mutual Absolute Return Master Fund, L.L.C.


duly  tendered to the Company  prior to the  Expiration  Date and not  withdrawn
pursuant to Section 5 below, the Company will in its sole discretion  either (a)
accept the  additional  Interests  permitted  to be  accepted  pursuant  to Rule
13e-4(f)(1)(ii)  under  the 1934  Act;  or (b)  amend  and  extend  the Offer to
increase  the amount of Interests  that the Company is offering to purchase.  In
the event the amount of Interests  duly tendered  exceed the amount of Interests
the  Company has  offered to  purchase  pursuant  to the Offer or any  amendment
thereof  (including the amount of Interests,  if any, the Company may be willing
to  purchase  as  permitted  by Rule  13e-4(f)(1)(ii)  under the 1934 Act),  the
Company will accept Interests duly tendered on or before the Expiration Date for
payment on a PRO RATA basis based on the  aggregate  net asset value of tendered
Interests.  The Offer may be  extended,  amended or  canceled  in various  other
circumstances described in Section 7 below.

          4. PROCEDURE FOR TENDERS. Members wishing to tender Interests pursuant
to the Offer should mail a completed and executed  Letter of  Transmittal to the
Transfer Agent, to the attention of Tender Offer  Administrator,  at the address
set forth on page 2, or fax a completed and executed  Letter of  Transmittal  to
the Transfer Agent, also to the attention of Tender Offer Administrator,  at the
fax number set forth on page 2. The completed and executed Letter of Transmittal
must be received by the Transfer Agent,  either by mail or by fax, no later than
12:00 midnight on the Expiration Date.

          The Company recommends that all documents be submitted to the Transfer
Agent  via  certified   mail,   return  receipt   requested,   or  by  facsimile
transmission.  A Member  choosing to fax a Letter of Transmittal to the Transfer
Agent must also send or deliver the original  completed  and executed  Letter of
Transmittal  to the  Transfer  Agent  promptly  thereafter.  Members  wishing to
confirm receipt of a Letter of Transmittal may contact the Transfer Agent at the
address or  telephone  number set forth on page 2. The method of delivery of any
documents  is at the  election  and  complete  risk of the Member  tendering  an
Interest  including,  but not limited to, the failure of the  Transfer  Agent to
receive any Letter of  Transmittal  or other  document  submitted  by  facsimile
transmission.  All questions as to the validity,  form,  eligibility  (including
time of receipt) and acceptance of tenders will be determined by the Company, in
its sole  discretion,  and such  determination  shall be final and binding.  The
Company  reserves the absolute right to reject any or all tenders  determined by
it not to be in  appropriate  form or the  acceptance  of or  payment  for which
would, in the opinion of counsel for the Company, be unlawful.  The Company also
reserves the absolute  right to waive any of the  conditions of the Offer or any
defect in any tender with respect to any  particular  Interest or any particular
Member,  and the  Company's  interpretation  of the terms and  conditions of the
Offer will be final and binding. Unless waived, any defects or irregularities in
connection  with  tenders  must be cured  within such time as the Company  shall
determine.  Tenders  will not be deemed to have been made  until the  defects or
irregularities  have been cured or waived.  None of the Company,  the Adviser or
the Board of  Managers  shall be  obligated  to give  notice of any  defects  or
irregularities in tenders, nor shall any of them incur any liability for failure
to give such notice.

          5. WITHDRAWAL  RIGHTS.  Any Member  tendering an Interest  pursuant to
this Offer may  withdraw  such tender at any time prior to or on the  Expiration
Date and, at any time after November 27, 2007,  assuming such Member's  Interest
has not yet been  accepted  for purchase by the Company.  To be  effective,  any
notice of withdrawal of a tender must be timely


                                      B-8





Old Mutual Absolute Return Master Fund, L.L.C.


received  by the  Transfer  Agent at the  address or the fax number set forth on
page 2. A form to use to give notice of  withdrawal  of a tender is available by
calling the  Transfer  Agent at the  telephone  number  indicated on page 2. All
questions as to the form and validity  (including time of receipt) of notices of
withdrawal  of a  tender  will  be  determined  by  the  Company,  in  its  sole
discretion,  and such  determination  will be final  and  binding.  A tender  of
Interests  properly  withdrawn  will not thereafter be deemed to be tendered for
purposes of the Offer. However,  withdrawn Interests may be tendered again prior
to the Expiration Date by following the procedures described in Section 4.

          6. PURCHASES AND PAYMENT.  For purposes of the Offer, the Company will
be deemed to have accepted (and thereby  purchased)  Interests that are tendered
as, if and when it gives written notice to the tendering  Member of its election
to purchase such Interest.  As stated in Section 2 above,  the purchase price of
an Interest tendered by any Member will be the net asset value thereof as of the
Valuation Date. The net asset value will be determined  after all allocations to
capital  accounts of the Member  required to be made by the LLC  Agreement  have
been made.

          For Members who tender  their  Interest or a portion  thereof  that is
accepted  for  purchase,  payment  of the  purchase  price  will  consist  of an
interest-bearing  non-transferable  promissory  note (the  "Note")  entitling  a
Member to an initial and contingent payment. The Note will entitle the Member to
receive  an  initial  payment  of 97% of the  unaudited  net asset  value of the
Interest  tendered and  accepted  for  purchase by the Company.  Payment of this
amount will be made within one month after the Valuation Date or, if the Company
has requested  withdrawals  of its capital from any portfolio  funds in order to
finance the purchase of  Interests,  no later than ten  business  days after the
Company  has  received at least 90% of the  aggregate  amount  withdrawn  by the
Company  from such  portfolio  funds.  The Note  will  also  entitle a Member to
receive a contingent  payment equal to the excess,  if any, of (a) the net asset
value of the  Interests  tendered and accepted for purchase by the Company as of
the Valuation Date,  determined based on the audited financial statements of the
Company for its fiscal year ending March 31, 2008,  over (b) the Initial Payment
(the "Contingent  Payment").  The Note will be delivered to the tendering Member
in the manner set forth below within ten calendar  days after the  acceptance of
the  Member's  Interest.  The Fund  will  deposit  the  aggregate  amount of the
Contingent  Payments in a separate,  interest  bearing  account and will pay any
interest  actually  earned thereon PRO RATA to the Members whose  Interests have
been  repurchased.  The  Contingent  Payment  will be payable (in the manner set
forth below) promptly after completion of the audit of the financial  statements
of the  Company for its fiscal  year.  It is  anticipated  that the audit of the
Company's  financial  statements  will be  completed no later than 60 days after
March 31, 2008.

          Although  the Company has  retained the option to pay all or a portion
of the purchase price by distributing marketable securities,  the purchase price
will be paid  entirely  in cash except in the  unlikely  event that the Board of
Managers determines that the distribution of securities is necessary to avoid or
mitigate  any  adverse  effect  of the  Offer on the  remaining  Members  of the
Company.

          The Note pursuant to which a tendering Member will receive the Initial
Payment and Contingent  Payment  (together,  the "Cash  Payment") will be mailed
directly to the tendering

                                      B-9





Old Mutual Absolute Return Master Fund, L.L.C.


Member.  Any Cash Payment due pursuant to the Note will be made by wire transfer
directly to the tendering Member to an account designated by the Member.

          The Company  expects that the purchase  price for  Interests  acquired
pursuant  to the Offer,  which will not exceed $1  million,  (unless the Company
elects to purchase a greater amount) will be derived from: (a) cash on hand; (b)
the proceeds of the sale of securities and portfolio assets held by the Company;
and/or (c) possibly  borrowings,  as described below. The Company will segregate
with its custodian cash or U.S. government securities or other liquid securities
equal to the  value of the  amount  estimated  to be paid  under  the  Note,  as
described above. Neither the Company, nor the Board of Managers, nor the Adviser
have determined at this time to borrow funds to purchase  Interests  tendered in
connection with the Offer. However,  depending on the dollar amount of Interests
tendered and prevailing general economic and market conditions,  the Company, in
its sole  discretion,  may decide to finance any portion of the purchase  price,
subject to compliance with applicable law,  through  borrowings.  If the Company
finances  any portion of the  purchase  price in that  manner,  it will  deposit
assets in a special  custody  account  with its  custodian,  SEI  Private  Trust
Company, to serve as collateral for any amounts so borrowed,  and if the Company
were to fail to repay any such amounts,  the lender would be entitled to satisfy
the Company's  obligations from the collateral  deposited in the special custody
account.  The Company expects that the repayment of any amounts borrowed will be
made from  additional  funds  contributed to the Company by existing  and/or new
Members or from the proceeds of the sale of securities and portfolio assets held
by the Company.

          7. CERTAIN CONDITIONS OF THE OFFER. The Company reserves the right, at
any time and from time to time,  to extend the period of time  during  which the
Offer is pending by notifying  Members of such extension.  The purchase price of
an Interest tendered by any Member will be the net asset value thereof as of the
Valuation Date. During any such extension, all Interests previously tendered and
not withdrawn  will remain  subject to the Offer.  The Company also reserves the
right,  at any time  and from  time to time up to and  including  acceptance  of
tenders pursuant to the Offer, to: (a) cancel the Offer in the circumstances set
forth in the following  paragraph and in the event of such  cancellation  not to
purchase or pay for any Interests  tendered pursuant to the Offer; (b) amend the
Offer; and (c) postpone the acceptance of Interests.  If the Company  determines
to amend the Offer or to postpone the acceptance of Interests tendered, it will,
to the extent  necessary,  extend the period of time  during  which the Offer is
open as provided above and will promptly notify Members.

          The  Company  may cancel the Offer,  amend the Offer or  postpone  the
acceptance  of tenders made  pursuant to the Offer if: (a) the Company would not
be able to  liquidate  portfolio  securities  in a manner  that is  orderly  and
consistent  with the Company's  investment  objectives  and policies in order to
purchase Interests tendered pursuant to the Offer; (b) there is, in the judgment
of the Board of  Managers,  any (i) legal  action or  proceeding  instituted  or
threatened challenging the Offer or otherwise materially adversely affecting the
Company,   (ii)  declaration  of  a  banking  moratorium  by  Federal  or  state
authorities  or any  suspension  of payment by banks in the United States or New
York State that is material to the Company,  (iii) limitation imposed by Federal
or state  authorities on the extension of credit by lending  institutions,  (iv)
suspension of trading on any organized exchange or over-the-counter market where
the Company has a material  investment,  (v)  commencement  of war,  significant
increase in armed


                                      B-10





Old Mutual Absolute Return Master Fund, L.L.C.


hostilities or other  international or national  calamity directly or indirectly
involving  the United  States  that is material to the  Company,  (vi)  material
decrease in the net asset  value of the Company  from the net asset value of the
Company as of  commencement of the Offer, or (vii) other event or condition that
would have a material  adverse effect on the Company or its Members if Interests
tendered  pursuant  to the Offer were  purchased;  or (c) the Board of  Managers
determines  that it is not in the  best  interest  of the  Company  to  purchase
Interests  pursuant to the Offer.  However,  there can be no assurance  that the
Company  will  exercise  its right to  extend,  amend or cancel  the Offer or to
postpone acceptance of tenders pursuant to the Offer.

          8. CERTAIN  INFORMATION  ABOUT THE COMPANY.  The Company is registered
under the  Investment  Company Act of 1940,  as amended (the "1940  Act"),  as a
closed-end, non-diversified, management investment company. It is organized as a
Delaware  limited  liability  company.  The  principal  executive  office of the
Company is located at 800 Westchester  Avenue,  S-618, Rye Brook, New York 10573
and the  telephone  number is (888)  266-2200.  Interests  are not traded on any
established   trading  market  and  are  subject  to  strict   restrictions   on
transferability pursuant to the LLC Agreement.

          The  Company  does not have any plans or  proposals  that relate to or
would  result in: (a) the  acquisition  by any  person of  additional  Interests
(other than the Company's intention to accept subscriptions for Interests on the
first day of each month and from time to time in the  discretion of the Company)
or the disposition of Interests;  (b) an  extraordinary  corporate  transaction,
such as a merger, reorganization or liquidation,  involving the Company; (c) any
material  change  in  the  present   distribution   policy  or  indebtedness  or
capitalization of the Company;  (d) any change in the identity of the investment
adviser of the Company,  or in the management of the Company including,  but not
limited  to,  any plans or  proposals  to change  the  number or the term of the
members of the Board of Managers,  to fill any existing  vacancy on the Board of
Managers or to change any material term of the investment  advisory  arrangement
with the Adviser;  (e) a sale or transfer of a material  amount of assets of the
Company  (other than as the Board of Managers  determines  may be  necessary  or
appropriate  to fund any portion of the purchase  price for  Interests  acquired
pursuant to this Offer to  Purchase or in  connection  with  ordinary  portfolio
transactions  of the Company);  (f) any other  material  change in the Company's
structure or business,  including  any plans or proposals to make any changes in
its  fundamental  investment  policies  for which a vote  would be  required  by
Section 13 of the 1940 Act;  or (g) any  changes in the LLC  Agreement  or other
actions that may impede the acquisition of control of the Company by any person.

          Based on August 31, 2007 estimated  values,  Old Mutual (US) Holdings,
Inc.  owns  approximately  $1.1  million in Interests  (approximately  9% of the
outstanding Interests).

          To the Company's  knowledge,  no executive officer,  Manager, or other
affiliate  plans to tender,  and the Company  presently has no plans to purchase
the Interest of any executive officer, Manager or other affiliate of the Company
pursuant to the Offer.

                                      B-11





Old Mutual Absolute Return Master Fund, L.L.C.


          There have been no  transactions  involving  the  Interests  that were
effected during the past 60 days by the Company, the Adviser, any Manager or any
person controlling the Company or the Adviser or any Manager.

          9. CERTAIN FEDERAL INCOME TAX CONSEQUENCES.  The following  discussion
is a general  summary of the federal income tax  consequences of the purchase of
Interests  by the Company  from Members  pursuant to the Offer.  Members  should
consult  their  own  tax  advisors  for  a  complete   description  of  the  tax
consequences to them of a purchase of their Interests by the Company pursuant to
the Offer.

          In  general,  a Member  from which an  Interest  is  purchased  by the
Company  will be treated as  receiving a  distribution  from the  Company.  Such
Member  generally will not recognize income or gain as a result of the purchase,
except to the extent (if any) that the amount of  consideration  received by the
Member exceeds such Member's then adjusted tax basis in such Member's  Interest.
A Member's  basis in the Member's  Interest will be reduced (but not below zero)
by the  amount of  consideration  received  by the  Member  from the  Company in
connection with the purchase of such Interest.  A Member's basis in the Member's
Interest will be adjusted for income,  gain or loss allocated (for tax purposes)
to such  Member  for  periods  prior  to the  purchase  of such  Interest.  Cash
distributed  to a Member in excess of the  adjusted  tax basis of such  Member's
Interest  is  taxable as  capital  gain or  ordinary  income,  depending  on the
circumstances.  A Member that has its entire  Interest  purchased by the Company
may  generally  recognize  a loss,  but only to the  extent  that the  amount of
consideration  received from the Company is less than the Member's then adjusted
tax basis in such Member's Interest.

          10. MISCELLANEOUS. The Offer is not being made to, nor will tenders be
accepted from,  Members in any jurisdiction in which the Offer or its acceptance
would not comply with the securities or Blue Sky laws of such jurisdiction.  The
Company is not aware of any  jurisdiction in which the Offer or tenders pursuant
thereto would not be in compliance with the laws of such jurisdiction.  However,
the  Company  reserves  the  right to  exclude  Members  from  the  Offer in any
jurisdiction in which it is asserted that the Offer cannot lawfully be made. The
Company  believes  such  exclusion  is  permissible  under  applicable  laws and
regulations,  provided the Company  makes a good faith effort to comply with any
state law deemed applicable to the Offer.

          The Company has filed an Issuer Tender Offer  Statement on Schedule TO
with the Securities and Exchange Commission (the "SEC"),  which includes certain
information  relating  to the  Offer  summarized  herein.  A free  copy  of such
statement may be obtained from the Company by contacting  the Transfer  Agent at
the address and telephone  number set forth on page 2 or from the SEC's internet
web site, http://www.sec.gov.  For a fee, a copy may be obtained from the public
reference office of the SEC at Judiciary Plaza, 100 F Street, N.E.,  Washington,
D.C. 20549.


                                      B-12





Old Mutual Absolute Return Master Fund, L.L.C.


                                     ANNEX A


                              Financial Statements


     Audited financial statements for the fiscal year ended March 31, 2007
     previously filed on EDGAR on Form N-CSR on June 8, 2007.







                                    EXHIBIT C


                              LETTER OF TRANSMITTAL


                                    Regarding
                                    Interests
                                       in


                 OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.


                   Tendered Pursuant to the Offer to Purchase
                            Dated September 28, 2007

        -----------------------------------------------------------------

            THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT, AND THIS
              LETTER OF TRANSMITTAL MUST BE RECEIVED BY THE COMPANY
              BY, 12:00 MIDNIGHT, EASTERN TIME, ON OCTOBER 26, 2007
                          UNLESS THE OFFER IS EXTENDED.
        -----------------------------------------------------------------

          Complete This Letter Of Transmittal And Return Or Deliver To:


                               Citi Fund Services
                           3 Canal Plaza, Ground Floor
                               Portland, ME 04101
                      Attention: Tender Offer Administrator

                              Phone: (800) 838-0232
                               Fax:  (207) 879-6206










Old Mutual Absolute Return Master Fund, L.L.C.


Ladies and Gentlemen:


          The  undersigned  hereby tenders to Old Mutual  Absolute Return Master
Fund,  L.L.C.  (the  "Company"),  a  closed-end,   non-diversified,   management
investment  company  organized  under  the laws of the  State of  Delaware,  the
limited liability company interest in the Company  ("Interest" or "Interests" as
the context requires) or portion thereof held by the undersigned,  described and
specified below, on the terms and conditions set forth in the offer to purchase,
dated  September  28,  2007  ("Offer to  Purchase"),  receipt of which is hereby
acknowledged,  and in this Letter of Transmittal (which together  constitute the
"Offer"). THE TENDER AND THIS LETTER OF TRANSMITTAL ARE SUBJECT TO ALL THE TERMS
AND  CONDITIONS SET FORTH IN THE OFFER TO PURCHASE,  INCLUDING,  BUT NOT LIMITED
TO, THE ABSOLUTE  RIGHT OF THE COMPANY TO REJECT ANY AND ALL TENDERS  DETERMINED
BY IT, IN ITS SOLE DISCRETION, NOT TO BE IN THE APPROPRIATE FORM.

          The  undersigned  hereby  sells to the Company the Interest or portion
thereof tendered hereby pursuant to the Offer.  The undersigned  hereby warrants
that the  undersigned has full authority to sell the Interest or portion thereof
tendered  hereby and that the Company will acquire good title thereto,  free and
clear of all liens, charges, encumbrances, conditional sales agreements or other
obligations  relating to the sale thereof, and not subject to any adverse claim,
when  and to the  extent  the  same  are  purchased  by it.  Upon  request,  the
undersigned  will  execute and deliver any  additional  documents  necessary  to
complete the sale in accordance with the terms of the Offer.

          The undersigned  recognizes that under certain circumstances set forth
in the Offer,  the Company may not be required to purchase any of the  Interests
in the Company or portions thereof tendered hereby.

          A  promissory  note  for the  purchase  price  will be  mailed  to the
undersigned.  The  initial  payment of the  purchase  price for the  Interest or
portion thereof tendered by the undersigned will be made by wire transfer of the
funds to an  account  designated  by the  undersigned.  The  undersigned  hereby
represents and warrants that the undersigned understands that any payment in the
form of marketable securities would be made by means of special arrangement with
the  tendering  member in the sole  discretion  of the Board of  Managers of the
Company.


          The promissory  note will also reflect the contingent  payment portion
of the  purchase  price (the  "Contingent  Payment"),  if any, as  described  in
Section 6 of the Offer to Purchase.  Any Contingent Payment of cash due pursuant
to the  promissory  note will also be made by wire  transfer of the funds to the
undersigned's  account.  The  undersigned  recognizes  that  the  amount  of the
purchase  price for Interests  will be based on the unaudited net asset value of
the Company as of December 31, 2007 or, if the Offer is extended,  approximately
one month after the expiration date of the Offer, as described in Section 7. The
Contingent  Payment  portion of the purchase  price,  if any, will be determined
upon  completion of the audit of the  Company's  financial  statements  which is
anticipated  to be completed  not later than 60 days after March 31,  2008,  the
Company's fiscal year end, and will be paid promptly thereafter.



                                      C-2






Old Mutual Absolute Return Master Fund, L.L.C.


          All authority herein conferred or agreed to be conferred shall survive
the death or incapacity of the undersigned and the obligation of the undersigned
hereunder shall be binding on the heirs,  personal  representatives,  successors
and  assigns of the  undersigned.  Except as stated in Section 5 of the Offer to
Purchase, this tender is irrevocable.



                                      C-3






Old Mutual Absolute Return Master Fund, L.L.C.


PLEASE FAX OR MAIL IN THE ENCLOSED POSTAGE PAID ENVELOPE TO:

CITI FUND SERVICES
3 CANAL PLAZA, GROUND FLOOR
PORTLAND, ME 04101
ATTENTION:  TENDER OFFER ADMINISTRATOR.

PHONE: (800) 838-0232
FAX:   (207) 879-6206


PART 1.    NAME AND ADDRESS:

           Name of Member:
                                ------------------------------------------------

           Social Security No.
           or Taxpayer
           Identification No.:
                                ------------------------------------------------

           Telephone Number:    (            )
                                ------------------------------------------------

PART 2.    AMOUNT  OF  LIMITED  LIABILITY  COMPANY INTEREST IN THE COMPANY BEING
           TENDERED:

           [ ]  Entire limited liability company interest.

           [ ]  Portion  of  limited liability  company interest  expressed as a
                specific dollar value. (A minimum  interest with a value greater
                than:  (a) $50,000, (OR $25,000, in the case of certain Members,
                as set  forth in the offering materials provided to the Members)
                must  be  maintained (the "Required Minimum Balance").)*

                                    $
                                     ---------------------

           [ ]  Portion  of  limited liability company interest in excess of the
                Required Minimum Balance.

                *The    undersigned   understands  and   agrees   that  if   the
                undersigned tenders an amount that would cause the undersigned's
                capital  account  balance  to fall  below the  Required  Minimum
                Balance,  the Company may reduce the amount to be purchased from
                the  undersigned  so  that  the  Required   Minimum  Balance  is
                maintained.

                                      C-4





Old Mutual Absolute Return Master Fund, L.L.C.



PART 3.    PAYMENT.

           CASH PAYMENT

           Cash Payments shall be wire transferred to the following account:

                        ---------------------------------
                                  Name of Bank

                        ---------------------------------
                                 Address of Bank

                        ---------------------------------
                                   ABA Number

                        ---------------------------------
                                 Account Number

                        ---------------------------------
                        Name Under Which Account Is Held

           PROMISSORY NOTE

           The   promissory  note  reflecting  both  the  initial and contingent
           payment portion of the purchase price, if applicable,  will be mailed
           directly  to the  undersigned  to the address of the  undersigned  as
           maintained in the books and records of the Company.




                                      C-5




Old Mutual Absolute Return Master Fund, L.L.C.


PART 4.     SIGNATURE(S).

- --------------------------------------------------------------------------------

FOR INDIVIDUAL INVESTORS                   FOR OTHER INVESTORS:
AND JOINT TENANTS:


- ------------------------------------      ------------------------------------
Signature                                  Print Name of Investor
(SIGNATURE OF OWNER(S) EXACTLY AS
 APPEARED ON INVESTOR CERTIFICATION)


- -------------------------------------      ------------------------------------
Print Name of Investor                     Signature
                                           (SIGNATURE OF OWNER(S) EXACTLY
                                            AS APPEARED ON INVESTOR
                                            CERTIFICATION)


- -------------------------------------      ------------------------------------
Joint Tenant Signature if necessary        Print Name of Signatory and Title
(SIGNATURE OF OWNER(S) EXACTLY AS
APPEARED ON INVESTOR CERTIFICATION)


- -------------------------------------      ------------------------------------
Print Name of Joint Tenant                 Co-signatory if necessary
                                           (SIGNATURE OF OWNER(S) EXACTLY
                                            AS APPEARED ON INVESTOR
                                            CERTIFICATION)


                                           ------------------------------------
                                           Print Name and Title of Co-signatory

- --------------------------------------------------------------------------------

Date:
         ---------------------------


                                      C-6





                                    EXHIBIT D

                         NOTICE OF WITHDRAWAL OF TENDER

                             Regarding Interests in

                 OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.

                   Tendered Pursuant to the Offer to Purchase
                            Dated September 28, 2007


- --------------------------------------------------------------------------------

                   THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE
                   AT, AND THIS NOTICE OF WITHDRAWAL MUST BE
               RECEIVED BY THE COMPANY BY, 12:00 MIDNIGHT, EASTERN
            TIME, ON OCTOBER 26, 2007, UNLESS THE OFFER IS EXTENDED.

- --------------------------------------------------------------------------------

          COMPLETE THIS NOTICE OF WITHDRAWAL AND RETURN OR DELIVER TO:

                               Citi Fund Services
                           3 Canal Plaza, Ground Floor
                               Portland, ME 04101
                      Attention: Tender Offer Administrator

                              Phone: (800) 838-0232
                               Fax:  (207) 879-6206
                        Attn: Tender Offer Administrator



                                      D-1






Old Mutual Absolute Return Master Fund, L.L.C.


Ladies and Gentlemen:


The undersigned  wishes to withdraw the tender of its limited  liability company
interest in Old Mutual Absolute Return Master Fund, L.L.C.  (the "Company"),  or
the tender of a portion of such  interest,  for  purchase  by the  Company  that
previously was submitted by the  undersigned  in a Letter of  Transmittal  dated
_____________________.


This tender was in the amount of:

[  ]   Entire limited liability company interest.

[  ]   Portion of limited liability company interest expressed as a
       specific dollar value $____________

[  ]   Portion of limited liability company interest in excess of the
       Required Minimum Balance.

       The undersigned recognizes that upon the submission on a timely basis
       of this Notice of Withdrawal of Tender, properly executed, the interest
       in the Company (or portion of the interest) previously tendered will not
       be purchased by the Company upon expiration of the tender offer described
       above.



                                      D-2





Old Mutual Absolute Return Master Fund, L.L.C.


SIGNATURE(S).

- --------------------------------------------------------------------------------

FOR INDIVIDUAL INVESTORS                   FOR OTHER INVESTORS:
AND JOINT TENANTS:


- ------------------------------------      ------------------------------------
Signature                                  Print Name of Investor
(SIGNATURE OF OWNER(S) EXACTLY AS
 APPEARED ON INVESTOR CERTIFICATION)


- -------------------------------------      ------------------------------------
Print Name of Investor                     Signature
                                           (SIGNATURE OF OWNER(S) EXACTLY
                                            AS APPEARED ON INVESTOR
                                            CERTIFICATION)


- -------------------------------------      ------------------------------------
Joint Tenant Signature if necessary        Print Name of Signatory and Title
(SIGNATURE OF OWNER(S) EXACTLY AS
APPEARED ON INVESTOR CERTIFICATION)


- -------------------------------------      ------------------------------------
Print Name of Joint Tenant                 Co-signatory if necessary
                                           (SIGNATURE OF OWNER(S) EXACTLY
                                            AS APPEARED ON INVESTOR
                                            CERTIFICATION)


                                           ------------------------------------
                                           Print Name and Title of Co-signatory

- --------------------------------------------------------------------------------

Date:
         ---------------------------


                                      D-3






                                    EXHIBIT E


       Forms of Letters from the Company to Members in Connection with the
                 Company's Acceptance of Tenders of Interests.


THIS LETTER IS BEING SENT TO YOU IF YOU  TENDERED  YOUR  ENTIRE  INTEREST IN THE
COMPANY.


                                            ___________________, 2007


Dear Member:


          Old Mutual  Absolute  Return Master Fund,  L.L.C.  (the "Company") has
received and accepted for purchase  your tender of a limited  liability  company
interest ("Interest") in the Company.

          Because you have  tendered and the Company has  purchased  your entire
investment,  you have been paid a note (the  "Note").  The Note  entitles you to
receive 97% of the purchase  price based on the  estimated  unaudited  net asset
value of the Company as of December  31, 2007 or, if the tender  offer period is
extended,  approximately  one month after the expiration of the tender offer, in
accordance  with the terms of the tender  offer.  A cash  payment in this amount
will be wire  transferred  to the  account  designated  by you in your Letter of
Transmittal  dated  ____________,  no later than  January 31,  2007,  unless the
valuation  date of the  Interests  has changed,  or the Company has  requested a
withdrawal of its capital from the portfolio funds in which it has invested.

          The terms of the Note provide that a contingent  payment  representing
the  balance  of the  purchase  price,  if any,  will be paid to you  after  the
completion of the Company's  fiscal year-end audit for the year ending March 31,
2008 and is subject to fiscal  year-end  audit  adjustment.  This amount will be
paid within ten days after the conclusion of the fiscal  year-end  audit,  or on
such earlier date as the Company's Board of Managers may determine, according to
the terms of the tender offer. We expect the audit to be completed by the end of
May 2008.


          Should  you  have any  questions,  please  feel  free to  contact  the
Company's Transfer Agent, Citi Fund Services at (800) 838-0232.


                                   Sincerely,


                                  OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.


Enclosure



                                      E-1








           THIS LETTER IS BEING SENT TO YOU IF YOU TENDERED A PORTION
                        OF YOUR INTEREST IN THE COMPANY.


                                               __________________, 2007


Dear Member:


          Old Mutual  Absolute  Return Master Fund,  L.L.C.  (the "Company") has
received  and  accepted  for  purchase  your tender of a portion of your limited
liability company interest ("Interest") in the Company.

          Because you have  tendered and the Company has  purchased a portion of
your investment,  you have been paid a note (the "Note").  The Note entitles you
to receive an initial payment of at least 97% of the purchase price based on the
unaudited  net asset  value of the  Company as of  December  31, 2007 or, if the
tender offer period is extended, approximately one month after the expiration of
the tender  offer,  in  accordance  with the terms of the tender  offer.  A cash
payment in this amount will be wire transferred to the account designated by you
in your Letter of  Transmittal  dated  _____________  no later than  January 31,
2007, unless the valuation date of the Interests has changed, or the Company has
requested a withdrawal of its capital from the  portfolio  funds in which it has
invested,  and provided that your account retains the required  minimum balance,
in accordance with the terms of the tender offer

          The terms of the Note provide that a contingent  payment  representing
the  balance  of the  purchase  price,  if any,  will be paid to you  after  the
completion of the Company's  fiscal year-end audit for the year ending March 31,
2008 and is subject to fiscal  year-end  audit  adjustment.  This amount will be
paid within ten days after the conclusion of the fiscal  year-end  audit,  or on
such earlier date as the Company's Board of Managers may determine, according to
the terms of the tender offer. We expect the audit to be completed by the end of
May 2008.

          You remain a member of the Company with respect to the portion of your
Interest in the Company that you did not tender.

          Should  you  have any  questions,  please  feel  free to  contact  the
Company's Transfer Agent, Citi Fund Services at (800) 838-0232.


                                  Sincerely,


                                  OLD MUTUAL ABSOLUTE RETURN MASTER FUND, L.L.C.


Enclosure


                                      E-2