William Cornachio focuses his practice on general corporate and commercial real estate matters, mergers and acquisitions, corporate and real estate finance, and other commercial lending.

A partner in Rivkin Radler’s Banking and Corporate Practice Groups, William’s clients include banks and other lenders to real estate and commercial borrowers, distribution companies, owners and developers of commercial properties, construction companies, and a major telecommunications company.

William counsels a number of middle market companies with business operations or real estate interests in the New York metropolitan area.

He has handled a variety of high-stakes corporate matters, the acquisition of a technology subsidiary from a publicly traded company, sell-side private equity transactions, the tax-free merger of a leading manufacturer’s business into a publicly traded company in accordance with the exempt-offering regulations of the federal securities laws, the sale of a medical facility to one of New York City’s largest private hospitals, tax-free divisive split-ups, and a number of major loan transactions to a variety of manufacturing and service businesses.

Court Admissions

U.S. District Courts for the Eastern and Southern Districts of New York

U.S. Court of Appeals for the D.C. Circuit

U.S. Tax Court

Bar Affiliations

American Bar Association – Business and Banking Law Committee

New York State Bar Association – Real Property Committee

Education

Fordham University School of Law, J.D.

Colgate University, B.A.

News & Publications

• Courts Leave Landlords in the Lurch on Guaranty Law
  May 11 | 2023
• 2 Rivkin Radler Partners Named Lawyer of the Year by Best Lawyers in America®
  August 23 | 2022
• 46 Rivkin Radler Attorneys Included in the 29th Edition of The Best Lawyers in America/Best Lawyers: Ones to Watch
  August 18 | 2022

A frequent lecturer to business groups, real estate trade organizations, and lawyers, William is a member of the Commercial and Industrial Brokers Society and the Long Island Real Estate Group. He is chairman of the Town of North Hempstead Waterfront Advisory Commission, actively involved with the Interfaith Nutrition Network, and is counsel to the Long Island Children’s Museum and the Manhasset Bay Sailing Foundation.

William was named Lawyer of the Year in 2023 for his work in Real Estate Law by Best Lawyers and has been named to Best Lawyers in America ^® for Real Estate Law from 2020 to 2023.

He received the 2018 Leadership in Law Lifetime Achievement Award from Long Island Business News.