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Partner Bios

Gary P. Weissman, CPA

Gary Weissman has been practicing as a Certified Public Accountant in New York State since 1982. He started Wolf Weissman CPA's, P.C. in January of 1986 with his partner, Irwin Wolf. As the managing partner of the firm, Gary not only oversees the day to day operations along with developing new business, but he focuses on servicing his clients with tax, accounting and financial planning needs.

Prior to forming Wolf Weissman CPA's, P.C., Gary worked at an international accounting firm for 6 years. He then worked at a privately held entertainment company for 2 years and a small NYC accounting firm for 2 years. Gary specializes in tax, business management, and financial planning services.

He is a graduate of the University of Albany with a Bachelor of Science degree in Accounting. He is a member of the American Institute of Certified Public Accountants (AICPA) and the New York State Society of CPA's. Gary and his wife Eileen have two adult children, Rachael, a teacher, and David, a landscape architect.


Mitchell Attas, CPA

Mitchell Attas has been a practicing Certified Public Accountant since 1996. He joined Wolf Weissman CPA's, P.C. as a staff accountant in 1992 and became partner in 2002. Mitch's focus has always been servicing individuals and small businesses with their tax and accounting needs.

Mitch has spent his entire professional career at Wolf Weissman and as such has been able to benefit from the wealth of knowledge of his other partners. His personal yet comprehensive approach has helped clients navigate through their financial lives to achieve their goals. He is a consultant, business manager, and an all around family accountant.

Mitch is a graduate of Baruch College, receiving a Bachelor of Business Administration degree in Accounting. He is a member of the New York State Society of CPA's. He resides in New Jersey with his wife MaryAnn and sons, Nicholas and Noah.


Irwin Wolf, CPA

Irwin Wolf has been a Certified Public Accountant for over 5 decades. He started Wolf Weissman CPA's, P.C. with his partner Gary Weissman in January of 1986. His wealth of experience and expertise are sought after among those who work in the financial industry.

Prior to forming Wolf Weissman, Irwin served his country as a member of the United States Army. After his discharge from the Army in 1960, Irwin worked for a small CPA firm in the tax department for seven years. He then joined another CPA firm and became the tax partner. After 18 years as a partner with that firm, Irwin left to form Wolf Weissman CPA's, P.C. with Gary Weissman. His specialties are taxes, estate taxes and trusts.

Irwin Wolf graduated from CCNY in June 1959 with a Bachelor of Business Administration degree. He is a member of the AICPA and the New York State Society of CPA's. He resides on Long Island, with his wife Nina.

Yuriy Kosenko, CPA

Yuriy Kosenko has been practicing as a Certified Public Accountant in New York State since 2009.  He joined Wolf Weissman after graduating CUNY Brooklyn College summa cum laude in 2006 and became a partner in 2014.

Our clients benefit from Yuriy's loyalty, professionalism, and vast knowledge.  He excels in building business relationships by making himself available to clients and taking great care at resolving some of the most complex individual, corporate, partnership, non-profit, and trust tax issues.

Yuriy is involved with DYC, a Brooklyn non-profit, enjoys following politics, loves to chat about sports, and always looks forward to spending time with family and friends at his Catskills retreat.  Yuriy grew up in Brooklyn, NY and now resides in Bloomfield, NJ with his wife Olga and two children Margaryta and Matthew.