Katherine B. Fantigrossi

Katherine B. Fantigrossi is a Lakeville, New York, senior attorney who represents clients in family law matters involving complex matrimonial disputes, custody, and domestic violence concerns. She brings experience from both public and private sector family law work. Her practice supports clients facing difficult transitions, including cases involving children, safety concerns, financial issues, and emotionally sensitive disputes that require careful preparation and practical legal guidance.

Fantigrossi earned a J.D. and M.B.A. through the joint degree program at Albany Law School and Union Graduate College in 2013. She received a B.S. from Roberts Wesleyan College in 2009. Her education supports a practice built on legal analysis, business understanding, negotiation, and client counseling. That background helps her address matrimonial cases involving business assets, financial questions, custody issues, and family law strategy.

Fantigrossi has represented clients in complex matrimonial, custody, and domestic violence cases. She has particular knowledge of business assets in divorce proceedings and has lectured on the selling of dental practices for the New York State Dental Association. Her work includes guiding clients through stressful periods while helping connect them with appropriate community, mental health, and recovery resources when those supports are needed.

Katherine B. Fantigrossi is licensed to practice law in New York and Texas. She also holds a Certificate in Mediation from Albany Law School and is a member of the American Bar Association and New York State Bar Association. Her record includes obtaining positive orders and decisions for clients, as well as multiple attorneys’ fee awards. Fantigrossi helps clients approach family law disputes with preparation, advocacy, and practical judgment.

Law Office Affiliations

• Senior Attorney, Duke Law Firm, P.C.
• Member, New York State Bar Association
• Member, State Bar of Texas
• Member, American Bar Association

Licensed State

• New York
• Texas

Education

• Albany Law School
  Juris Doctor (JD) & MBA
• Roberts Wesleyan College
  Bachelor of Science (BS)

Awards & Badges