[7] He attended West Virginia University (WVU; BA in political science and English literature, 1989), where Hoylman-Sigal was elected president of student administration and graduated summa cum laude with honors.

[20] He is also Trustee of the Community Service Society of New York,[21] a former president of the Gay and Lesbian Independent Democrats, and a former board member of the Empire State Pride Agenda, Tenants & Neighbors, Class Size Matters, and Citizen Action.

[22] In 2001, Hoylman-Sigal ran for the New York City Council in the first district,[16] which includes Governor's Island and a portion of Lower Manhattan.

[26][27] Hell's Kitchen activist and bar owner Tom Greco was his closest competition, winning 24% of the vote.

Act, prohibiting New York State electors from voting for a presidential candidate who has not publicly released at least 5 years worth of tax returns no later than 50 days prior to a general election.

[40] The bill would allow certain Congressional committees to perform oversight by reviewing the New York State tax returns of senior government officials; members of Congress suggested this could allow Congressional committees to review Donald Trump's tax returns.

[43] Over 9,000 lawsuits have been filed under that law, including against the Catholic Church, the Boy Scouts, and other groups that cared for children.

[44] In early 2021, Governor Andrew Cuomo signed a bill, sponsored by Hoylman-Sigal, to repeal New York's ban on paid gestational surrogacy.

[45] In June 2021, Mark Levine defeated Hoylman-Sigal in the Democratic primary election for Manhattan Borough President.

[46] In June 2021, the New York Senate passed the Adult Survivors Act (ASA), which was sponsored by Hoylman-Sigal and Assemblymember Linda Rosenthal.

[51] He referred to what he called SafeSport's failure to carry out impartial and thorough investigations and ensure the safety of athletes it is charged with protecting.

[55] Hoylman-Sigal is a member of the Vote Blue Coalition, a progressive group and federal PAC created to support Democrats in New York, New Jersey, and Pennsylvania through voter outreach and mobilization efforts.

[56] Brad Madison Hoylman married David Ivan Sigal, a filmmaker, at Congregation Beit Simchat Torah in Manhattan, New York City, in February 2013.