As a member of the Casualty Department, Tonya has significant experience handling matters involving product liability, premises liability and toxic tort litigation. She also handles the defense of matters involving hotels, motor vehicle liability, personal injury claims for motor vehicle accidents and trucking and transportation. In addition, Tonya has successfully litigated numerous cases in which she has represented hospitals, medical facilities, pharmacies and physicians in a wide range of specialties.
As part of Tonya’s premises liability and hospitality defense practice, she represents national and regional hotel chains, boutique properties, and hospitality management companies in claims involving personal injury, negligent security, wrongful death, and general liability. Tonya works closely with hotel owners, operators, insurers, and risk management teams to develop proactive litigation strategies and resolve claims efficiently, whether through early resolution or trial. From slip-and-fall accidents to ADA compliance and property condition disputes, she brings a responsive, results-oriented approach to protecting our clients’ interests and brand reputation.
Tonya graduated from Yale University in 1992, earning a Bachelor of Arts degree in Economics. In 1995, she earned her juris doctor degree from Georgetown University Law Center. Tonya began her legal career as an Assistant District Attorney in Brooklyn, New York, where she gained valuable litigation experience, including trials and grand jury presentations, before transitioning to civil practice in 1998.
Honors & awards
The Best Lawyers in America, Medical Malpractice Law - Defendants
2025-2026
Year joined
2014
Results
Defense Verdict in a Two-Week Medical Malpractice Trial in Bronx County, NY.
Health Care Liability
May 11, 2018
The plaintiff suffered a perforated uterus following an ambulatory IUD removal surgery that was performed by our Ob/Gyn client. The following day, the plaintiff was readmitted with worsening symptoms and underwent surgery to repair the perforation. The plaintiff alleged that our client was negligent in failing to timely and properly manage the uterine perforation and that the delayed treatment resulted in the plaintiff requiring two open surgeries and ultimately a hysterectomy. With $4.4 million at stake, the jury returned a complete defense verdict.
Thought Leadership
98 Marshall Dennehey Attorneys Recognized in the 2026 Editions of The Best Lawyers in America and the Best Lawyers: Ones to Watch in America
August 20, 2025
Marshall Dennehey is proud to highlight the firm’s 98 attorneys who have been recognized in the 2026 editions of The Best Lawyers in America and the Best Lawyers: Ones to Watch in America. Less than 6% of all practicing lawyers in the U.S.
Classes / Seminars Taught
Civil Litigation State of Affairs - The Impact of COVID-19 in New York and Connecticut & What’s Next, Marshall Dennehey Client Webinar, May, 2021