About Gleason, Dunn, Walsh & O'Shea
Gleason, Dunn, Walsh & O'Shea is a law firm founded in 1988 and based in Albany, New York. Its attorneys are admitted to New York state and federal courts, to courts in several other states, and to the United States Supreme Court. The firm states that its clients include individuals, small businesses, financial institutions, health care organizations, labor organizations, construction companies, real estate developers, and governmental agencies.
The firm's website describes practice areas including appellate practice, bank and lender counsel, commercial litigation and dispute resolution, education law, government and municipal law, insurance law, labor and employment law, medical practice, and trusts and estates with elder law. It also offers mediation services in New York and Vermont. The firm's office is at 300 Great Oaks Blvd. in Albany, and the sources reviewed show no other New York State office.
| Type | Law firm |
|---|---|
| New York offices | Albany |
| Phone | 518-432-7511 |
| Website | gdwo.com |
| Registered NY attorneys | 19 |
Practice areas
Areas of work that Gleason, Dunn, Walsh & O'Shea describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.
Organization profile based on its official website and public sources (reviewed October 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Gleason, Dunn, Walsh & O'Shea.
Registered attorneys
Ronald Dunn Currently registered Mark Walsh Currently registered Frank O'Connor Currently registered Brendan O'Shea Currently registered Michael Ravalli Currently registered Lisa Joslin Currently registered Michael Kinum Currently registered John Calareso Currently registered Leesa Naimo-Fredette Currently registered Tammy Cumo Currently registeredRegistration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.