Tammy L. Cumo

Co-Managing Partner

Tammy L. Cumo

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Tammy L. Cumo joined Gleason, Dunn, Walsh & O’Shea in 2014, and became a partner of the firm in January 2015.  Her practice primarily involves commercial and transactional matters, with a focus in the areas of real estate development, professional and business corporation formation and representation, limited liability company formation and representation, physician group representation, and public authority law and compliance. She has represented a variety of entities including private and public clients in formation, acquisition and sale of businesses, commercial real estate transactions including acquisition/disposition of manufacturing, warehousing, office and commercial properties; commercial leasing (both office and retail); development and management agreements; development of former military installations; land use approvals; preparation and negotiation of all transactional documentation; and preparation and negotiation of financing agreements.

Her practice also includes representation of clients in matters of general business law including formation and corporate governance and compliance with respect to professional and business for-profit, as well as not-for-profit entities, and representation of clients on a wide variety of operational issues in a general counsel capacity. She has represented public authorities in all operational needs including internal policies and procedures, compliance with procurement and lobbying requirements, compliance with public accountability requirements, FOIL, open meetings law as well as coordination with local and state agencies on authority specific requirements.

Ms. Cumo has also represented developers before the NYS Attorney General with respect to condominium and homeowners’ associations.

Prior to joining the firm, Ms. Cumo was employed for over ten years with a large Albany law firm as a transactional attorney, and then served as Assistant Counsel to the New York State Department of Taxation and Finance. 

Practice Areas

  • Commercial Real Estate
  • Business Formation and General Counsel
  • Health Care Law
  • Contract Negotiation
  • Public Authority Law
  • Municipal Law and Land Use
  • Bank and Lender Counsel
  • Mergers and Acquisitions
  • Construction Law

Bar Admissions

  • New York
  • Massachusetts
  • United States District Court, Northern District of New York


  • J.D., magna cum laude, Albany Law School of Union University, 2002
    • Albany Law Review Member
    • Member, Justinian Society
  • B.A., summa cum laude, Russell Sage College, 2000

Professional Associations

  • New York State Bar Association (Member, Business Law, Health Law and Real Property Law Sections)
  • Albany County Bar Association

Published Work and Speaking Engagements

  • Inside Albany,  ENVIRONMENTAL LAW IN N.Y., MATTHEW BENDER, Regular Contributor (January 2003 through September 2004)
  • Native Americans Cannot Regain Sovereignty over Former Tribal Lands by Purchase: A Big Victory for a Small City, N.Y. REAL PROPERTY LAW JOURNAL, Spring 2005 at Page 124.
  • Public and Private Sectors React to the Court’s Allowance of Eminent Domain Seizures for Private Development Projects, STRICTLY BUSINESS, September 2006, at Page 44.
  • Lenders and Lessors Beware—Certificates Provide Little Comfort, STRICTLY BUSINESS, November 2007, at Page 40.
  • Overview and Formation of Condominiums and Homeowners’ Associations, Lorman Seminars, May 2008, Speaker
  • New York Civil Engineering and Surveying Law, Halfmoon Seminars, July 2009, Speaker

Community Involvement

  • Board of Directors, Albany County Land Bank Corporation (2014 to 2015)
  • Rensselaer County Leadership Institute Class of 2008
  • Rensselaer County Leadership Institute Alumni Association Committee (2008 to 2012)
  • Board of Trustees, Center City Committee, Inc. (2003 to 2007)
  • Board of Directors, Animal Protective Foundation of Schenectady, Inc. (2006 to 2008)
  • Seton Health Foundation Golf Committee (2009 to 2012)
  • Board of Directors, St. Paul’s Center (2010 to 2011)