Stuart Duffin

Active Port Saint Lucie, FL — President for Stuart Duffin P.A.

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Stuart Duffin Overview

Stuart Duffin has been associated with eight companies, according to public records. The companies were formed over a eighteen year period with the most recent being incorporated three years ago in December of 2022. Four of the companies are still active while the remaining four are now listed as inactive.

Background Report for Stuart Duffin

Includes Age, Location, Address History for Stuart Duffin
Arrest, Criminal, & Driving Records
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Name	Status	Incorporated	Key People	Role
Coastal Defender, Inc	Active	2022	2	President
Stuart Duffin P.A.	Active	2005	1	President
Grassy Key Marina Management, LLC	Active	2022	2	Manager
Grassy Key Marina Investment Partners, LLC	Active	2022	2	Member
Kingsbarns Investment LLC	Inactive	2004	1	Manager
Kingsbarns-Hamilton, LLC	Inactive	2006	4	Managing Member
Kingsbarns Group, LLC	Inactive	2006	3	Managing Member
Florida Soccer Academy LLC	Inactive	2006	1	Managing Member

Connections for Stuart Duffin

A connection is made when two people are officers, directors, or otherwise associated with the same company. Stuart has five known connections and has the most companies in common with Jeff Vastola.

2

Jeff Vastola has the following companies in common with Stuart Duffin

Name	Status	Incorporated	Key People	Role
G----------------------------------------C	Active	2022	2	Manager
G-------------------------------C	Active	2022	2	Manager

2

Nigel A. Cunniffe

Nigel A. Cunniffe has the following companies in common with Stuart Duffin

Name	Status	Incorporated	Key People	Role
K----------------------C	Inactive	2006	4	Managing Member
K-------------------C	Inactive	2006	3	Managing Member

2

Anthony O'Donnell

Anthony O'Donnell has the following companies in common with Stuart Duffin

Name	Status	Incorporated	Key People	Role
K----------------------C	Inactive	2006	4	Managing Member
K-------------------C	Inactive	2006	3	Managing Member

1

Thomas J. Duffin

Thomas J. Duffin has the following companies in common with Stuart Duffin

Name	Status	Incorporated	Key People	Role
C-------------------c	Active	2022	2	Vice President

1

Bonnie Shild has the following companies in common with Stuart Duffin

Name	Status	Incorporated	Key People	Role
K----------------------C	Inactive	2006	4	Managing Member

Source

Florida Department of State
Data last refreshed on Monday, April 6, 2026

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