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About Me

Primarily focuses on complex family and matrimonial litigation and appearing on divorce, custody and support matters in the the Supreme Courts and Family Courts on Long Island and New York City. Also experienced in all areas of commercial litigation, business purchases/sales and real estate transactions


Practice Areas


  1. Child Support: 30%
    24 years
  2. Child Custody: 30%
    24 years
  3. Divorce & Separation: 30%
    24 years
  4. Marriage & Prenuptials: 5%
    24 years
  5. Family: 5%
    24 years


Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

3 total 

  • Michelle Aulivola

    Karen is an experienced and knowledgeable litigator who has established excellent working relationships with her peers. She is attentive to her clients and provides them with exceptional legal representation. I would highly recommend Karen to anyone needing legal representation, whether relating to civil and commercial litigation, business transactions, matrimonial and family law or real estate transactions.


    Michelle Aulivola Litigation Attorney
    Relationship: Co-worker

  • Anthony Thomas Ballato

    I endorse this lawyer. Karen Svendsen is highly skilled in family law and litigation. She is very caring of her clients and a wonderful person. I highly recommend her to anyone seeking counsel or representation.


    Anthony Ballato Litigation Attorney
    Relationship: Fellow lawyer in community

Contact Info

Long, Tuminello LLP.

120 4th Ave
Bay Shore, NY, 11706-7938


NYCurrently registered 199203/13/2015
CTAdministrative Suspension199109/16/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
Nation's Top One PercentThe National Association of Distinquished Counsel2015
Top Attorneys in Long IslandLegal Leaders2014
Excellence in Political StudiesPi Sigma Alpha Award1987
Work Experience
TitleCompany NameDuration
PartnerLong Tuminello LLP.2010 - Present
PartnerAnsanelli, Kugler & Svendsen, LLP2005 - 2010
AttorneyLaw Office of Karen S. Svendsen2001 - 2005
AssociateLaw office of Vincent W. Ansanelli1992 - 2005
Association NamePosition NameDuration
New York StateLicensed Real Estate Broker2013 - Present
Matrimonial Bar Association of Suffolk CountyN/A2010 - Present
Suffolk County Matrimonial Bar AssociationN/A2009 - Present
Huntington Lawyers ClubN/A2008 - Present
United States Court of Federal ClaimsN/A2002 - Present
United States Court of Appeals for the Armed ForcesN/A2002 - Present
UNited States Court Appeals Federal CircuitN/A2002 - Present
Suffolk County Bar AssociationN/A1993 - Present
United States District Court for the Eastern District of New YorkN/A1992 - Present
U.S. Supreme CourtN/A1992 - Present
Publication NameTitleDate
Leader publicationsLegal Leaders: Long Island Top Rated Lawyers2014
School NameMajorDegreeGraduated
Hofstra University School of LawLawJD - Juris Doctor1991
Adelphi UniversityPolitical StudiesBA - Bachelor of Arts1988