Gordon, Fournaris & Mammarella

What Gordon, Fournaris & Mammarella does

Gordon, Fournaris & Mammarella, P.A. is a Delaware-based boutique law firm founded on November 1, 1994 by Peter S. Gordon, Thomas Mammarella, and Emmanuel G. Fournaris. Headquartered at 1925 Lovering Avenue in Wilmington, the firm employs approximately 24 attorneys organized across five practice areas: Trial Practice (complex commercial, corporate, and fiduciary litigation, including matters before the Delaware Court of Chancery), Business and Tax Planning & Transactions, Private Wealth (Trusts & Estates), Tax-Exempt Organizations & Charitable Planning, and Real Estate. The firm serves Delaware corporations, families, high-net-worth individuals, and nonprofit organizations, with an international reach anchored in the favorable Delaware trust statute and Court of Chancery jurisdiction.

The firm's competitive positioning is built on specialized Delaware trust and estate expertise: 100% of its attorneys hold an LL.M. in Taxation, multiple attorneys are ACTEC Fellows, and founder Peter S. Gordon serves as the 2025-26 ACTEC President. The firm has been ranked Band 1 in Private Wealth Law: Delaware by Chambers High Net Worth for nine consecutive years and holds four Metropolitan Tier 1 rankings in the 2026 U.S. News-Best Lawyers Best Law Firms rankings (Trusts and Estates, Tax Law, Litigation-Trusts and Estates, and Real Estate). In 2025 it launched a National Trust Planning practice staffed by newly hired associates to serve clients outside Delaware seeking Delaware-law trust structures.

The revenue model is traditional professional services: billable hours, retainer fees, and engagement-based fees across its practice areas, with pricing not publicly disclosed. Distribution is direct, through attorney-client engagements and reputation-driven referrals within the legal and financial advisor community, supplemented by content marketing (attorney-authored analysis of Delaware Court of Chancery decisions and ABA journal publications), conference participation (LawPact, ACTEC, Heckerling Institute), and earned-media recognition through industry rankings. The firm is privately held by its founding partners and directors, with no external equity investment and no parent company.

Name

Gordon, Fournaris & Mammarella

Legal name

Gordon, Fournaris & Mammarella, P.A.

Website

https://gfmlaw.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

Gordon, Fournaris & Mammarella is a Wilmington, Delaware boutique law firm of approximately 24 attorneys that advises high-net-worth individuals, Delaware corporations, and nonprofits on trusts and estates, business and tax planning, commercial real estate, and fiduciary litigation.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Offices of Lawyers (541110)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Family & Private Client (Trusts & Estates) Law (BPAHAAAK)

akta.pro secondary industries

Corporate & Commercial Law (BPAHAAAA), Litigation Support & Expert Witness (Valuation-Related) (BPAHANAG)

Keywords

• Trust and estate planning
• Fiduciary litigation
• Business and tax planning
• Commercial real estate law
• Tax-exempt organizations

Headquarters

HQ city

Wilmington

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Legal Services: Traditional law firm revenue from billable hours, retainer fees, and transaction-based fees for legal services in trusts and estates, business planning, real estate, and litigation matters.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Gordon, Fournaris & Mammarella, P.A. is a Delaware law firm that advises individuals, families, businesses, and nonprofits on high value trust and estate planning, business formation and transactions, commercial real estate, and complex commercial, corporate, and fiduciary litigation. The firm offers five core practice areas: Trial Practice, Business and Tax Planning & Transactions, Private Wealth (Trusts & Estates), Tax-Exempt Organizations & Charitable Planning, and Real Estate.

Product overview

Gordon, Fournaris & Mammarella, P.A. is a Delaware law firm offering five integrated legal service practice areas: Trial Practice (complex litigation), Business and Tax Planning & Transactions (corporate and tax counsel), Private Wealth (trusts and estates), Tax-Exempt Organizations & Charitable Planning, and Real Estate. The firm serves individuals, families, businesses, and nonprofits seeking Delaware legal counsel, combining sophisticated legal expertise with personalized client attention.

Differentiator

Problem solved

Functional benefit

Products and services

• Trial Practice Complex commercial, corporate, and fiduciary litigation services before Delaware courts, including the Court of Chancery. Practice covers fiduciary disputes, corporate disputes, and commercial litigation for businesses, individuals, and estates.
• Business and Tax Planning & Transactions Business formation, operations, commercial transactions, tax planning, and corporate governance counsel for Delaware corporations, businesses, and individuals. Includes entity structuring, mergers and acquisitions, and commercial contract work.
• Private Wealth (Trusts & Estates) High value trust and estate planning, estate administration, and wealth transfer services for high net worth individuals, families, and national clients seeking Delaware trust law advantages. Includes Delaware trust planning, fiduciary litigation, and multi-generational wealth preservation.
• Tax-Exempt Organizations & Charitable Planning Legal counsel for tax-exempt organizations, nonprofits, and charitable giving structures, including maintenance of tax-exempt status, charitable planning strategies, and organizational governance.
• Real Estate Commercial and residential real estate transactions, financing, leasing, and land development services. Includes transactional real estate advice, complex financing arrangements, and Delaware legal opinions.

Quantifiable outcome

• 9 consecutive years ranked Band 1 in Chambers High Net Worth Guide
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered core.

• LawPactcoreStrategic or Co-development PartnerInternational association of independent business law firms. GF&M is a long-standing member and hosted the 2025 LawPact Spring Conference in Wilmington, bringing together attorneys and firm leaders from across the country and around the world for collaborative presentations, roundtable discussions, and networking sessions focused on innovation in firm management, client service, and global legal trends.
• ACTEC (American College of Trust and Estate Counsel)coreStrategic or Co-development PartnerPrestigious national and international association of over 2,400 trust and estate lawyers and law professors. Firm founder Peter Gordon elected President effective March 24, 2025. Multiple GF&M attorneys are ACTEC Fellows.

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Day Pitney LLP: Large East Coast firm with one of the most prominent private client/trusts & estates practices serving HNW families. Comparable because it actively competes for the same Delaware trust planning and fiduciary litigation work, even though it is broader in scope.
• Proskauer Rose LLP: Large full-service firm widely recognized for its private client and trusts/estates practice serving ultra-HNW families. Comparable on the HNW estate planning and fiduciary litigation services side.
• Greenberg Traurig, LLP: Major AmLaw firm with a national trusts/estate and private wealth group and offices in multiple states. Overlaps with GF&M on high-end Delaware and multi-state estate planning engagements for large HNW and corporate clients.

Direct peers

• Richards, Layton & Finger, P.A. Delaware's pre-eminent law firm headquartered in Wilmington, also with deep trusts/estates and Court of Chancery litigation practices. Directly comparable because it serves the same Delaware corporations, HNW families, and fiduciaries on substantially the same matters as GF&M.
• Saul Ewing LLP: Mid-Atlantic firm with a strong Wilmington presence and trusts/estates, business, and real estate practices. Competes for similar Delaware corporation and HNW estate-planning mandates.
• Connolly Gallagher LLP: Delaware-based boutique firm with trusts/estates, business, and litigation practices serving HNW clients in Wilmington. Directly comparable boutique competitor for the same Delaware private wealth matters.
• McCarter & English, LLP: Multi-office Northeast/Mid-Atlantic firm with a sizable Delaware office and trusts/estates, business, and litigation practice areas. Comparable because it competes for Delaware-based and national clients needing integrated T&E and corporate counsel.
• Morris, Nichols, Arsht & Tunnell LLP: Wilmington-based Delaware firm widely regarded as the top alternative for Delaware corporate and trust matters. Comparable in jurisdiction, client base (Delaware corporations and HNW), and Court of Chancery focus.
• Young Conaway Stargatt & Taylor, LLP: Major Wilmington-headquartered Delaware firm with overlapping business, real estate, and litigation practices serving many of the same Delaware corporations and families as GF&M.

Regional players

• Womble Bond Dickinson (US) LLP: Mid-Atlantic/Southeast-based full-service firm with a Wilmington office and trusts/estates, corporate, and litigation practices. Comparable as a regional competitor for Delaware-based corporate and private wealth clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/gfandmlaw

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Gordon, Fournaris & Mammarella