Steven R. Lau has been promoted to partner at Black Marjieh Leff & Sanford.

Mayer Brown has announced that Scott Zemser has rejoined the firm as a partner in the firm's banking & finance practice, where he will serve as a co-leader of the global lending group. He was formerly a partner at Allen & Overy.

Crowell & Moring has added Brian Paul Gearing, Ph.D., as a partner in the firm's intellectual property group. He joins the firm from Kirkland & Ellis.

Sophie Jacobi-Parisi has joined Warshaw Burstein as a partner in its matrimonial and family law practice. She had been a partner at Mayerson, Abramowitz & Kahn.

Russ August & Kabat has added litigator Stanton “Larry” Stein, and his partners Bennett A. Bigman and Ashley R. Yeargan, and senior associate Diana Sanders to the firm as it expands its intellectual property practice into entertainment and media litigation.