Jonathan Cantarero is an attorney at Simmons Hanly Conroy who is based in the firm’s New York City office.

He is committed to helping individuals and families impacted by mesothelioma, and he brings both compassion and an in-depth understanding of litigation practices to the work that he does.

A Fearless Advocate for Clients

Jonathan has been practicing law since 2017, and through both his professional and volunteer endeavors, he has dedicated himself to protecting the rights of others.

Throughout law school, Jonathan worked with multiple organizations focused on improving the lives of New Yorkers, including New York Lawyers for the Public Interest (NYLPI), Mental Hygiene Legal Services and Nassau Suffolk Law Services.

Today, he remains steadfast in his pursuit of helping others as a mesothelioma lawyer at Simmons Hanly Conroy.

Jonathan advocates on behalf of asbestos exposure victims who became sick through no fault of their own. He works with clients to stand up to asbestos companies that hid the dangers of asbestos from the public in order to protect their profits.

With a focus on motions and appellate practices during his career, Jonathan’s experience and knowledge are invaluable tools for clients navigating the complexities of asbestos litigation. He ensures each case is guided by a strategic and informed approach, so his clients can receive the mesothelioma compensation they deserve.

Background & Experience

Jonathan earned his B.A. in Philosophy and Religion from the State University of New York at Old Westbury in 2012.

He went on to complete his J.D. at the City University of New York School of Law in 2016, where he served as the Executive Articles Editor of the CUNY Law Review and participated in the Health Law Concentration.

Before joining Simmons Hanly Conroy, Jonathan served as an appellate court attorney for the New York Supreme Court, Appellate Division, Fourth Judicial Department in Rochester, New York.

He also served as an assistant district attorney with the Appeals Bureau of the Manhattan District Attorney’s Office, where he collectively briefed and argued over 40 cases in various appellate courts. Jonathan previously focused his work on motion practice at a law firm representing victims of child abuse.

Attorney Jonathan Cantarero in the Office

Practice Areas:

  • Asbestos & Mesothelioma

Bar and Court Admissions:


  • CUNY Law Review, Executive Articles Editor


  • Fixing Appeal Waivers in New York, Albany Law Review (2022)
  • The Ethics of Civil Commitment, Journal of Health & Biomedical Law (2020)
  • Religion and Writing: A Literary Analysis of Justice Kennedy on Abortion, University of Maryland Journal of Race, Religion, Gender & Class (2020)
  • Liberation Theology and Political Process: A Case Study of New York City’s Mayor, Wake Forest Law Review (2020)

Representative Experience:

  • Asbestos & Mesothelioma


  • La Cosecha Community Center, Director of Legal Navigator Program (2020-2024)
  • Central American Refugee Center (CARECEN), Board Member (2021-2023)


  • SUNY Old Westbury, B.A., 2012
  • City University of New York School of Law, J.D., 2016
  • Assemblies of God Theological Seminary, M.A., 2022