Tamsin R. Kaplan

Tamsin R. Kaplan


Davis, Malm & D'Agostine PC

Recognized since 2014

Boston, Massachusetts

Practice Areas

Litigation - Labor and Employment

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Tamsin is an employment lawyer and business litigator, and serves as outside general counsel to diverse nonprofits and private schools. She has extensive experience representing businesses, executives and other high-level professionals in a full range of employment-related issues from recruitment through termination. Tamsin frequently conducts workplace investigations, provides trainings on diversity and harassment, and advises employers regarding employee handbooks, employment audits, and workplace policies and practices. She regularly litigates cases involving employment and business disputes before federal and state courts and agencies.

Recent matters include:

  • Successfully represented a defendant higher education institution executive and officer on a motion to dismiss in a federal class action suit claiming breach of contract and fiduciary duty, among other claims. Prevailed on appeal in the First Circuit Court of Appeals.
  • Successfully enforced a non-compete agreement against a former high level employee in the medical services industry.
  • Successfully defended a high-tech company against allegations of unpaid wages and employment discrimination.
  • Won a judgment for a company co-founder in a lawsuit arising from the breakup of a business, including breach of contract and non-compete claims.
  • Negotiated numerous CEO, CFO and CMO employment, non-compete and severance agreements.
  • Defeated a summary judgment motion in the Superior Court Business Litigation Session in a lawsuit involving equity distribution in a biotech start-up.
  • Successfully defended a medical practice in a breach of contract lawsuit by a physician.
  • Won a five-figure discovery sanction against the opposing party in a Superior Court lawsuit.
  • Conducted investigations of allegations against high-level municipal officials.
  • Obtained a high six figure settlement for a health care executive by commencing arbitration to enforce the good reason termination provision in the client’s employment contract.
  • Prevailed on a motion to dismiss claims against a non-profit executive in U.S. District Court.

Contact & Links
Location
  • One Boston Place, 37th Floor
    Boston, MA 02108
Education
  • Boston College Law School, J.D.
  • Tufts University, BA
Bar Admissions
  • Massachusetts, Supreme Judicial Court, Commonwealth of Massachusetts
  • Massachusetts, United States District Court for the District of Massachusetts
  • Massachusetts, United States Court of Appeals for the First Circuit
  • Massachusetts, United States Supreme Court
  • Massachusetts, Massachusetts Bar Association
Affiliations
  • International Lawyers Network - Member
  • American Bar Association - Member
  • Boston Bar Association - Member
  • Women's Bar Association - Member (Board Member, 2009-2015; Middlesex Committee, 1995-2012; Business Development Committee, 2009-2015, Senior Practitioner Committee, 2015-Present)
  • Massachusetts Bar Association - Member (Business Law Section Council, 2012-Present)

Davis, Malm & D'Agostine PC
Headquarters: Boston, Massachusetts

8 The Best Lawyers in America® awards

1 Best Lawyers: Ones to Watch® in America award

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Recognized in The Best Lawyers in America® 2026 for work in:
  • Litigation - Labor and Employment
Awards:
  • Chambers USA: Leading Lawyer, 2013-2014; Recognized Practitioner, 2015-2019
  • Best Lawyers in America, 2014-2026, (included in the 2021 “Women in the Law” edition)
  • Massachusetts Super Lawyers, 2009-2024 (Top 50 Women Massachusetts Super Lawyers, 2013-2016; Top 100 New England Super Lawyers, 2014; Top 100 Massachusetts Super Lawyers, 2014)
  • Selected a "Top Women of Law" by Massachusetts Lawyers Weekly, 2019
Additional Areas of Practice:
  • Employee Benefits (ERISA) Law
  • Employment Law - Individuals
  • Employment Law - Management

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4 Ways HR Can Create and Maintain Inclusive Workplaces


4 Ways HR Can Create and Maintain Inclusive Workplaces

TK
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Tamsin R.

Kaplan

Employee Handbook Provisions Relating to Employee Performance, Conduct, Evaluation, Discipline and Termination


Employee Handbook Provisions Relating to Employee Performance, Conduct, Evaluation, Discipline and Termination

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Tamsin R.

Kaplan

Sexual Harassment in the Workplace: What Employers Should Know


Sexual Harassment in the Workplace: What Employers Should Know

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Tamsin R.

Kaplan

Non-Competition Agreements: Are They Facing Possible Extinction?


Non-Competition Agreements: Are They Facing Possible Extinction?

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Tamsin R.

Kaplan

Sexual Harassment in the Workplace – What US: Massachusetts Companies Need to Know


Sexual Harassment in the Workplace – What US: Massachusetts Companies Need to Know

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Tamsin R.

Kaplan

Employee Handbooks: Benefits, Pitfalls and Preserving At-Will Employment


Employee Handbooks: Benefits, Pitfalls and Preserving At-Will Employment

TK
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Tamsin R.

Kaplan

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