Gordon, Fournaris & Mammarella, P.A. Ranked Band 1 in the 2026 Chambers High Net Worth Guide
Gordon, Fournaris & Mammarella, P.A. (GF&M) has again earned Chambers’ highest ranking—Band 1 in Private Wealth Law: Delaware—in the 2026 edition of the Chambers High Net Worth (HNW) Guide. The firm also received a Band 2 ranking in Private Wealth Disputes: Delaware. Chambers describes GF&M as “a highly respected firm in Delaware that offers trust and estate planning services and acts in fiduciary litigation.”
This year, three of GF&M’s directors were ranked in the Chambers HNW Guide for 2026. Both Peter Gordon and Michael Gordon are ranked Band 1 in Private Wealth Law: Delaware. William Kelleher is ranked Band 1 in Private Wealth Disputes: Delaware.
Chambers highlights the experience of each of GF&M’s three ranked attorneys in the 2026 edition of the Chambers HNW Guide.
Peter Gordon handles client matters such as trust and estate administration, business succession planning and fiduciary litigation. He is a founding director of Gordon, Fournaris & Mammarella, and is well known in the Delaware trusts and estate planning Bar for his longstanding contribution to this practice area.
Michael Gordon handles a variety of trust and estate matters and has broad experience across estate planning topics. He often works with out-of-state clients on Delaware trust law matters. “Michael has a terrific ability to communicate with clients. He is able to convey complicated issues to clients with ease and is great on drafting.”
William Kelleher acts in fiduciary litigation matters for wealthy clients. He has strong expertise in trust litigation before the Delaware Court of Chancery.
The 2026 edition marks GF&M’s tenth consecutive year in the Chambers HNW Guide—an important honor for the firm. For more than 30 years, Chambers has identified leading legal talent through months of independent research.
GF&M thanks the Chambers sources whose feedback contributed to the firm’s recognition in the 2026 edition of the Chambers High Net Worth Guide.
View GF&M’s Chambers rankings.
