A partner at Paul, Weiss, Rifkind Wharton & Garrison who fell prey to Bernard L. Madoff’s massive Ponzi scheme will get a second shot at making his ex-wife return a multi-million dollar “windfall” he claims she received as a result of the fraud.

As part of a divorce agreement, Steven Simkin, the chair of Paul Weiss’ real estate department, paid Laura Blank some $2.7 million, a figure he believed amounted to half the value of an account the couple opened during their 30-year marriage with Mr. Madoff’s investment firm.