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About Me

Born in Brooklyn and raised in Suffolk County, Tom and his wife Peggy have called Patchogue home for more than 50 years, where they raised their two children who are both married and each have two children of their own.

Tom graduated from Seton Hall High School, Dowling College and St. John's University School of Law. He joined his father, Thomas Keegan Sr., who had been practicing law in Patchogue since the 1950s. They formed a partnership in 1978 that continues today as Keegan & Keegan, Ross & Rosner, LLP.

His legal experience began with Metropolitan Life Insurance Company, where he served in the Government Relations Division of the Group Life, Health and Pensions Department.

Mr. Keegan served as Village attorney, where he was responsible for developing various Village ordinances, as well prosecution of violations in Village Justice Court as Special Assistant District Attorney.

After his years of clamming the bays of the South Shore of Long Island, he worked at Metropolitan Life Insurance Company and later supervised an underwriting unit at Equitable Life Assurance Society, while attending both undergraduate school and law school at night. This diverse experience has served him well in providing invaluable insight into the inner workings of the insurance industry, with which he constantly battles for our clients.

As special counsel for the Village of Patchogue, his duties included the acquisition by the Village and sale for development of the 14-acre industrial parcel that became the hub of the revitalization of the West end of Patchogue.

In addition, Mr. Keegan has served Kiwanis International as president of the Patchogue Club and Lieutenant Governor of the Suffolk East division of the New York district.

Former Community Involvement Includes:

  • Lt. Governor of Suffolk East division of the New York District

  • Kiwanis International - President of the Patchogue Club

  • President of the Greater Patchogue Chamber of Commerce and President of the Greater Patchogue Foundation

  • Scout Leader of Boy Scout Troop 550

  • Trustee of St. Francis De Sales Church

  • Committeeman for the Suffolk County Republican Committee.

In addition to the full time practice of law for over 30 years, Tom draws on a diverse background of business experience, employment in the insurance industry, community volunteerism and hobbies that enables him to represent his clients at both the negotiating table and in the courtroom. "I frequently find useful application from diverse business and legal experiences in representing clients faced with unusual or challenging situations that must be answered - either by capable negotiation or effective litigation."

Other Notable Accomplishments:

  • Publisher and Editor-in-Chief of the St. PATchogue Wit and Wisdom News, an annual publication about life of the Irish in America with special emphasis on events of Long Island in general and the South Shore of Suffolk County in particular; entering its 11th year in 2007.

  • Conceived of, developed and produced the first Celtic Laser Light show that played to over 2500 happy patrons at the Patchogue Theatre for the Performing Arts on a single night.



Languages Spoken: English, Spanish

Practice Areas


  1. Personal Injury: 35%
    36 years, 1 thousand cases
  2. Car Accidents: 35%
    36 years, 2.5 thousand cases
  3. Defective and Dangerous Products: 30%
    36 years, 500 cases


Payment Types:

Cash, Check, Credit Card

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Contact Info

Keegan & Keegan, Ross & Rosner, LLP

147 North Ocean Ave
Patchogue, NY, 11772


NYCurrently registered 197803/13/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Work Experience
TitleCompany NameDuration
PartnerKeegan & Keegan, Ross & Rosner, LLP1978 - Present
Association NamePosition NameDuration
Greater Patchogue Chamber of CommerceN/AN/A
Publication NameTitleDate
Keegan & Keegan, Ross & Rosner NewsletterSupplemental Needs Trust2011
Keegan & Keegan, Ross & Rosner NewsletterSchool District Forced to Compensate Football Player2009
Keegan & Keegan, Ross & Rosner Newsletter$150,000 from Bar Where Patron was Assaulted2009
Keegan & Keegan, Ross & Rosner NewsletterYour (Not So) Confidential Communications2008
Keegan & Keegan, Ross & Rosner NewsletterWhy You Need a Will2008
Keegan & Keegan, Ross & Rosner NewsletterDo Not Delay2008
Keegan & Keegan, Ross & Rosner NewsletterSupplemental Underinsured Motorist Coverage2007
Keegan & Keegan, Ross & Rosner NewsletterSports Injuries and Litigation2007
Keegan & Keegan, Ross & Rosner NewsletterUM, SUM, and Spousal Protection Coverage2007
School NameMajorDegreeGraduated
Seton Hall High SchoolN/AN/AN/A
Dowling CollegeN/AN/AN/A
St. John's University School of LawN/AN/AN/A