Chapman and Cutler 111 West Monroe Street Chicago, Illinois 60603 September 29, 1999 Nike Securities L.P. 1001 Warrenville Road Lisle, Illinois 60532 The Chase Manhattan Bank Unit Investment Trust Division 4 New York Plaza, 6th Floor New York, New York 10004-2413 Re: The First Trust Combined Series 272 Gentlemen: We have acted as counsel for Nike Securities L.P., Depositor The First Trust Combined Series 272 (the "Fund"), in connection with the issuance of Units of fractional undivided interest in the several Trusts of said Fund under a Trust Agreement dated September 29, 1999 (the "Indenture") between Nike Securities L.P., as Depositor, Securities Evaluation Services, Inc., as Evaluator, and The Chase Manhattan Bank, as Trustee. In this connection, we have examined the Registration Statement, the form of Prospectus proposed to be filed with the Securities and Exchange Commission, the Indenture and such other instruments and documents as we have deemed pertinent. For purposes of the following opinions, it is assumed that each asset of the Trust is debt, the interest on which is excluded from gross income for federal income tax purposes. Based upon the foregoing and upon an investigation of such matters of law as we consider to be applicable, we are of the opinion that, under existing federal income tax law: (i) The Trust is not an association taxable as a corporation but will be governed by the provisions of subchapter J (relating to trusts) of Chapter 1, Internal Revenue Code of 1986 (the "Code"). (ii) Each Unit holder will be considered as owning a pro rata share of each asset of the respective Trust in the proportion that the number of Units of such Trust held by him bears to the total number of Units outstanding of such Trust. Under Subpart E, Subchapter J of Chapter 1 of the Code, income of each Trust will be treated as income of each Unit holder of the respective Trust in the proportion described, and an item of Trust income will have the same character in the hands of a Unit holder as it would have in the hands of the Trustee. Accordingly, to the extent that the income of a Trust consists of interest and original issue discount excludable from gross income under Section 103 of the Code, such income will be excludable from Federal gross income of the Unit holders, except in the case of a Unit holder who is a substantial user (or a person related to such user) of a facility financed through issuance of any industrial development bonds or certain private activity bonds held by the Trust. In the case of such Unit holder who is a substantial user (and no other) interest received with respect to his Units attributable to such industrial development bonds or such private activity bonds is includable in his gross income. In the case of certain corporations, interest on the Bonds is included in computing the alternative minimum tax pursuant to Section 56(c) of the Code and the branch profits tax imposed by Section 884 of the Code with respect to U.S. branches of foreign corporations. (iii) Gain or loss will be recognized to a Unit holder upon redemption or sale of his Units. Such gain or loss is measured by comparing the proceeds of such redemption or sale with the adjusted basis of the Units. If a Bond is acquired with accrued interest, that portion of the price paid for the accrued interest is added to the tax basis of the Bond. When this accrued interest is received, it is treated as a return of capital and reduces the tax basis of the Bond. If a Bond is purchased for a premium, the amount of the premium is added to the tax basis of the Bond. Bond premium is amortized over the remaining term of the Bond, and the tax basis of the Bond is reduced each tax year by the amount of the premium amortized in that tax year. Accordingly, Unit holders must reduce the tax basis of their Units for their share of accrued interest received by the Trust, if any, on Bonds delivered after the Unit holders pay for their Units to the extent that such interest accrued on such Bonds before the date the Trust acquired ownership of the Bonds (and the amount of this reduction may exceed the amount of accrued interest paid to the seller) and, consequently, such Unit holders may have an increase in taxable gain or reduction in capital loss upon the disposition of such Units. In addition, such basis will be increased by the Unit holders aliquot share of the accrued original issue discount (and market discount, if the Unit holder elects to include market discount in income as it accrues) with respect to each Bond held by the Trust with respect to which there was original issue discount at the time the Bond was issued (or which was purchased with market discount) and reduced by the annual amortization of bond premium, if any, on Bonds held by the Trust. (iv) If the Trustee disposes of a Trust asset (whether by sale, payment on maturity, liquidation, redemption or otherwise) gain or loss is recognized to the Unit holder and the amount thereof is measured by comparing the Unit holders aliquot share of the total proceeds from the transaction with his basis for his fractional interest in the asset disposed of. Such basis is ascertained by apportioning the tax basis for his Units among each of the Trust assets (as of the date on which his Units were acquired) ratably according to their values as of the valuation date nearest the date on which he purchased such Units. A Unit holders basis in his Units and of his fractional interest in each Trust asset must be reduced by the amount of his aliquot share of accrued interest received by the Trust, if any, on Bonds delivered after the Unit holders pay for their Units to the extent that such interest accrued on the Bonds before the date the Trust acquired ownership of the Bonds (and the amount of this reduction may exceed the amount of accrued interest paid to the seller), must be reduced by the annual amortization of bond premium, if any, on Bonds held by the Trust and must be increased by the Unit holders share of the accrued original issue discount (and market discount, if the Unit holder elects to include market discount in income as it accrues) with respect to each Bond which, at the time the Bond was issued, had original issue discount (or which was purchased with market discount). (v) In the case of any Bond held by the Trust where the "stated redemption price at maturity" exceeds the "issue price", such excess shall be original issue discount. With respect to each Unit holder, upon the purchase of his Units subsequent to the original issuance of Bonds held by the Trust, Section 1272(a)(7) of the Code provides for a reduction in the accrued "daily portion" of such original issue discount upon the purchase of a Bond subsequent to the Bonds original issue, under certain circumstances. In the case of any Bond held by the Trust the interest on which is excludable from gross income under Section 103 of the Code, any original issue discount which accrues with respect thereto will be treated as interest which is excludable from gross income under Section 103 of the Code. (vi) We have examined the municipal bond unit investment trust insurance policies, if any, issued to the Trust on the Date of Deposit by AMBAC Assurance Corporation, Financial Guaranty Insurance Corporation or a combination thereof. Each such policy, or a combination of such policies, insures all bonds held by the Trustee for that particular Trust (other than bonds described in paragraph (vii)) against default in the prompt payment of principal and interest. In our opinion, any amount paid under each said policy, or a combination of said policies, which represents maturing interest on defaulted Bonds held by the Trustee will be excludable from Federal gross income if, and to the same extent as, such interest would have been so excludable if paid in normal course by the Issuer of the defaulted Bonds provided that, at the time such policies are purchased, the amounts paid for such policies are reasonable, customary and consistent with the reasonable expectation that the Issuer of the Bonds, rather than the insurer, will pay debt service on the Bonds. Paragraph (ii) of this opinion is accordingly applicable to insurance proceeds representing maturing interest. (vii) Certain bonds in the portfolio of the Trust have been insured by the issuers thereof against default in the prompt payment of principal and interest (the "Insured Bonds"). Insurance has been obtained for such Insured Bonds, or, in the case of a commitment, the Bonds will be ultimately insured under the terms of such an insurance policy, which are designated as issuer Insured Bonds on the portfolio pages of the respective Trusts in the prospectus for the Fund, by the issuer of such Insured Bonds. Insurance on Insured Bonds is effective so long as such Insured Bonds remain outstanding. For each of these Insured Bonds, we have been advised that the aggregate principal amount of such Insured Bonds listed on the portfolio page for the respective Trust was acquired by the applicable Trust and are part of the series of such Insured Bonds listed in the aggregate principal amount. Based upon the assumption that the Insured Bonds of the Trust are part of the series covered by an insurance policy or, in the case of a commitment, will be ultimately insured under the terms of such an insurance policy, it is our opinion that any amounts received by the applicable Trust representing maturing interest on such Insured Bonds will be excludable from federal gross income if, and to the same extent as, such interest would have been so excludable if paid in normal course by the Issuer provided that, at the time such policies are purchased, the amounts paid for such policies are reasonable, customary and consistent with the reasonable expectation that the issuer of the Insured Bonds, rather than the insurer, will pay debt service on the Insured Bonds. Paragraph (ii) of this opinion is accordingly applicable to such payment. Sections 1288 and 1272 of the Code provide a complex set of rules governing the accrual of original issue discount. These rules provide that original issue discount accrues either on the basis of a constant compound interest rate or ratably over the term of the Bond, depending on the date the Bond was issued. In addition, special rules apply if the purchase price of a Bond exceeds the original issue price plus the amount of original issue discount which would have previously accrued based upon its issue price (its "adjusted issue price"). The application of these rules will also vary depending on the value of the Bond on the date a Unit holder acquires his Units, and the price the Unit holder pays for his Units. Because the Trust does not include any "private activity" bonds within the meaning of Section 141 of the Code issued on or after August 8, 1986, none of the Trust Fund's interest income shall be treated as an item of tax preference when computing the alternative minimum tax. In the case of corporations, for taxable years beginning after December 31, 1986, the alternative minimum tax depends upon the corporations alternative minimum taxable income ("AMTI") which is the corporations taxable income with certain adjustments. Pursuant to Section 56(c) of the Code, one of the adjustment items used in computing AMTI of a corporation (other than an S corporation, Regulated Investment Company, Real Estate Investment Trust, REMIC or FASIT) for taxable years beginning after 1989, is an amount equal to 75% of the excess of such corporations "adjusted current earnings" over an amount equal to its AMTI (before such adjustment item and the alternative tax net operating loss deduction). "Adjusted current earnings" includes all tax-exempt interest, including interest on all Bonds in the Trust, and tax-exempt original issue discount. Effective for tax returns filed after December 31, 1987, all taxpayers are required to disclose to the Internal Revenue Service the amount of tax-exempt interest earned during the year. Section 265 of the Code provides for a reduction in each taxable year of 100 percent of the otherwise deductible interest on indebtedness incurred or continued by financial institutions, to which either Section 585 or Section 593 of the Code applies, to purchase or carry obligations acquired after August 7, 1986, the interest on which is exempt from Federal income taxes for such taxable year. Under rules prescribed by Section 265, the amount of interest otherwise deductible by such financial institutions in any taxable year which is deemed to be attributable to tax-exempt obligations acquired after August 7, 1986, will generally be the amount that bears the same ratio to the interest deduction otherwise allowable (determined without regard to Section 265) to the taxpayer for the taxable year as the taxpayers average adjusted basis (within the meaning of Section 1016) of tax-exempt obligations acquired after August 7, 1986, bears to such average adjusted basis for all assets of the taxpayer. Legislative proposals have been made that would extend the financial institution rules to all corporations. We also call attention to the fact that, under Section 265 of the Code, interest on indebtedness incurred or continued to purchase or carry Units is not deductible for Federal income tax purposes. Under rules used by the Internal Revenue Service for determining when borrowed funds are considered used for the purpose of purchasing or carrying particular assets, the purchase of Units may be considered to have been made with borrowed funds even though the borrowed funds are not directly traceable to the purchase of Units. However, these rules generally do not apply to interest paid on indebtedness incurred for expenditures of a personal nature such as a mortgage incurred to purchase or improve a personal residence. "The Revenue Reconciliation Act of 1993" (the "Tax Act") subjects tax-exempt bonds to the market discount rules of the Code effective for bonds purchased after April 30, 1993. In general, market discount is the amount (if any) by which the stated redemption price at maturity exceeds an investors purchase price (except to the extent that such difference, if any, is attributable to original issue discount not yet accrued) subject to a statutory de minimis rule. Market discount can arise based on the price a Trust pays for Bonds or the price a Unit holder pays for his or her Units. Under the Tax Act, accretion of market discount is taxable as ordinary income; under prior law, the accretion had been treated as capital gain. Market discount that accretes while a Trust holds a Bond would be recognized as ordinary income by the Unit holders when principal payments are received on the Bond, upon sale or at redemption (including early redemption), or upon the sale or redemption of his or her Units, unless a Unit holder elects to include market discount in taxable income as it accrues. Chapman and Cutler has expressed no opinion with respect to taxation under any other provisions of Federal law. Ownership of the Units may result in collateral Federal income tax consequences to certain taxpayers. Prospective investors should consult their tax advisors as to the applicability of any such collateral consequences. We hereby consent to the filing of this opinion as an exhibit to the Registration Statement (File No. 333-22615) relating to the Units referred to above and to the use of our name and to the reference of our firm in said Registration Statement and in the related Prospectus. Very truly yours, Chapman and Cutler EFF/erg