Ceres Tactical Systematic (TDFF) 8-K/A Changes in Registrant's Certifying Accountant

EXHIBIT 16.1

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C.  20549-7561

Dear Sirs/Madams:

We have read Item 4.01 of Tactical Diversified Futures Fund L.P.’s Form 8-K/A, amending the Current Report on Form 8-K filed on December 7, 2016, and have the following comments:

1. We agree with the statements made in Item 4.01(a).

2. We have no basis on which to agree or disagree with the statements made inItem 4.01(b).

Yours truly,

/s/ Deloitte & Touche LLP

New York, New York

March 28, 2017