International Society of Primerus Law Firms
Justin R. Bonanno
Practice Areas:

New York Attorney
Justin R. Bonanno

Phone: 212.922.9250


Languages: English

Mr. Bonanno is a partner in the Commercial Litigation, and Cooperative and Condominium Law Practice Groups at Ganfer & Shore. 

His practice focuses on representing individuals and corporate entities in complex commercial litigation including extensive securities, contract, and general commercial litigation, with an emphasis on real estate matters. Mr. Bonanno has represented clients in all phases of litigation in both state and federal courts, including appeals.

Mr. Bonanno was formerly a senior litigation associate of the firm and has worked at Ganfer & Shore for virtually his entire career. Prior to joining Ganfer & Shore, Mr. Bonanno worked in private practice, where he litigated on behalf of banks in matters involving real estate, foreclosures, and lending.

Mr. Bonanno has been recognized as a “New York Super Lawyer Rising Star” for 2011. 


  • Brooklyn Law School (J.D., 2000)
  • Manhattan College (B.A., 1997)

Memberships and Admissions

  • New York (2001)
  • U.S. District Court, Southern District of New York (2002)
  • U.S. District Court, Eastern District of New York (2002) 
  • Member, New York State Bar Association.

Representative Cases

  • Represented a major New York City hotel in a Yellowstone injunction dispute with its tenant.
  • Defense of a major New York City law firm in a legal malpractice action arising from alleged advice given in connection with a proceeding before the NASD (now FINRA).  
  • Summary judgment in favor of client in a dispute involving the conveyance of ownership of major New York City hotel in midtown Manhattan. 
  • Dismissal of breach of contract action brought by an elevator company against real estate management company. 
  • Represented parties in partnership/LLP disputes. 
  • Represented cooperative and condominium associations in shareholder litigation, among other things, involving renovations, access, shareholder rights and board discretion. 
  • Represented cooperatives and condominium associations in construction litigation. 
  • Represented parties in multiple real estate proceedings in which sanctions were awarded. 
  • Represented multiple real estate developers in foreclosure proceedings.

Contact This Firm

Ganfer Shore Leeds & Zauderer LLP

360 Lexington Avenue
14th Floor
New York, NY 10017
United States

Law Firm Contact: Mark A. Berman

Tel: 212.922.9250

Fax: 212.922.9335



Member Since: 2004

Send Us An Email

Preferred Contact Method?

 Email Phone - AM Phone - PM

Disclaimer: Primerus and our member law firms welcome your emails, contact forms, phone calls and written letters. Contacting us does not create an attorney-client relationship. Please do not send any confidential information to Primerus or its member law firms until an attorney-client relationship has been established. Thank you and we look forward to serving you.

* Denotes Required Field