Nathaniel R.B. Koslof



Nate Koslof is a trial lawyer with vast experience representing businesses and individuals in complex commercial litigation. A versatile litigator, Nate regularly resolves contract, tort, real estate, intellectual property, professional liability, and insolvency-related disputes for clients across many industries. In all cases, Nate provides clients with strategic advice that seeks to resolve disputes effectively and efficiently, allowing them to refocus on achieving their business and/or personal goals.

Nate has particular expertise representing parties involved in disputes over the ownership and management of closely held businesses and has represented numerous officers and directors in disputes alleging breaches of fiduciary duty, among other claims. Nate also has experience representing clients in connection with criminal and civil government investigations, including investigations by the SEC, USAO, and other civil and criminal regulators. In addition, Nate’s experience includes prosecuting and defending hundreds of Bankruptcy Court adversary proceedings concerning preferential transfers and fraudulent conveyances.

Moreover, Nate is committed to his extensive pro bono work. For instance, through a partnership with the Victim Rights Law Center, Nate regularly represents victims of domestic violence, helping them obtain 209A restraining orders / 258E harassment prevention orders. Nate has also served as a Co-Chair of the Greater Boston Legal Services Associates Fund Drive since 2020.

Prior to joining the firm, Nate was a senior associate with a Boston litigation boutique and at a regional, full-service law firm.


  • Massachusetts Super Lawyer, Rising Star, 2022-2024
  • Best Lawyers in America®, Ones to Watch, 2021-2024
  • The Legal 500 U.S., 2021
  • Pro Bono Honor Roll, U.S. Bankruptcy Court for the District of Massachusetts, 2021


Nate has a deep commitment to providing pro bono legal support to people in need. His recent pro bono work includes:

  • Argued before United States Court of Appeals for the Second Circuit on appeal of the District Court’s denial of client’s habeas petition pursuant to 28 U.S.C. § 2255.
  • Obtained several 209A restraining orders / 258E harassment prevention orders, including a lifetime order.
  • Represented individuals in administrative hearings before the Massachusetts Department of Unemployment Assistance and judicial review proceedings in the Boston Municipal Court.
  • Represented parent in child abduction and Hague Convention case in federal court.
  • Co-Chair of the Greater Boston Legal Services Associates Fund Drive (2020-2024).


  • Massachusetts
  • U.S. District Court for the District of Massachusetts
  • U.S. Court of Appeals, First Circuit


  • Boston College Law School  (J.D., cum laude, 2014)
  • Washington University in St. Louis  (B.A., magna cum laude, 2009)