David Warshauer

David S. Warshauer, CPA, CCIFP


  • Jericho
  • (516) 336-2407
David S. Warshauer is a Partner at Grassi & Co. where he specializes in all aspects of accounting, including consulting and financial reporting.  In addition to his focus on the construction industry, David works with clients in a variety of other industries such as manufacturing & distribution, real estate, and professional services.

David has spent the bulk of his career with Grassi & Co. He performs audits, reviews and compilations for clients, as well as special projects including construction cost audits. He also helps clients save money with creative tax planning strategies, enhanced by his extensive construction industry knowledge.

At Grassi & Co., David is a member of the firm’s construction accounting committee and is active in the technical development of the staff through the firm’s extensive in-house training program.

In addition to David’s CPA licensure, he has earned the designation of CCIFP (Certified Construction Industry Financial Professional). David has also lectured for the NY State Society of CPA’s on construction and auditing issues and currently teaches a Construction Finance Education class at CUNY and SUNY Farmingdale. David was featured in the 2010 Who’s Who in Accounting for Long Island Business News.

Implications of the New Tax Law for LI Contractors

Tax projection season is upon us and is a completely new ballgame!  The Tax Cuts and Jobs Act (“TCJA”) was adopted at the end of 2017 with most of it effective January 1, 2018.  

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    BA, SUNY Buffalo


    Subcontractors Trade Association (STA), Executive Board Member

    American Institute of Certified Public Accountants (AICPA)

    New York State Society of Certified Public Accountants (NYSSCPA)

    Construction Financial Management Association (CFMA)

    Construction Industry Council (CIC)
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