Mr. Rosen’s practice focuses on appeals, general commercial litigation, insurance litigation, and strategic advising.
Mr. Rosen has extensive litigation experience at the trial and appellate level. At the appellate level, he has drafted merits briefs in high-stakes appeals in the United States Supreme Court, the 1st, 4th, 5th, 6th, and 9th Circuit Courts of Appeal, the California Supreme Court, the California Courts of Appeal, and the Missouri Supreme Court. He has argued appeals in both the state and federal appellate courts. Recently, Mr. Rosen’s argued two appeals in the California Courts of Appeal that led to published decisions in favor of his clients.
At the trial level, Mr. Rosen has drafted and argued successful summary judgment motions and motions to dismiss in state and federal courts across the country. Mr. Rosen's general commercial litigation practice includes breach of contract, copyright, trade secret case, and constitutional law cases for diverse clients. He also has a growing insurance practice focused on high-stakes bad faith litigation across the United States in state and federal court.
In the past few years, Mr. Rosen has served as outside, national coordinating counsel for GEICO and has appeared on behalf of them in cases across the country—at both the trial and appellate level.
Outside the courtroom, Mr. Rosen has taken on the numerous complicated legal questions for government, tech, insurance, and entertainment clients, providing answers to difficult problems that never reach the courtroom.
Mr. Rosen also maintains an active pro bono practice and has provided pro bono representation to clients challenging unconstitutional election procedures, seeking justice for officer-involved shootings, seeking immigration relief, and challenging unconstitutional seizures. He is currently part of an MTO and Lambda Legal team challenging Idaho Senate Bill 1100, which categorically prohibits transgender people in Idaho schools from using sex-separated facilities aligned with their gender identity.
Prior to joining the firm, Mr. Rosen clerked for Judge Debra Ann Livingston of the U.S. Court of Appeals for the Second Circuit and Judge Alison J. Nathan of the U.S. District Court for the Southern District of New York (Judge Nathan would later be appointed to the Second Circuit).
Mr. Rosen graduated first in his class and summa cum laude from Harvard Law School, where he served as developments chair of the Harvard Law Review. He received his B.A. in English and music, magna cum laude, from Amherst College.
Mr. Rosen is a co-founder of the Yleana Leadership Academy, a program that prepares low-income high school students for the SAT, teaches them entrepreneurship skills, and helps connect them to compassionate peers and mentors. He also loves to sing and has performed as a baritone in the San Francisco Gay Men’s Chorus since 2017 along with several other members of MTO’s San Francisco office.