Lucy Fato has been named general counsel of American International Group Inc.

In an announcement Tuesday, the New York-based global insurance organization said Fato will oversee AIG's global legal, compliance, regulatory and government affairs function, effective Oct. 16.

"I had the privilege of working with Lucy at [Marsh & McLennan Cos. Inc.] and know firsthand that she is an incredibly accomplished executive and strategic partner," said AIG president and chief executive Brian Duperreault, in the press release announcing Fato's hire.

Fato, who most recently served as general counsel for global investigations firm Nardello & Co., will continue to work in an advisory capacity with the firm. 

She will replace Peter Solmssen at AIG, who has served as general counsel since 2016 and is returning to retirement, according to a press release issued Tuesday.

Fato had been general counsel and managing director, head of the Americas, at Nardello since last October after spending more than two years as GC and EVP at S&P Global, formerly known as McGraw Hill Financial. Prior to that, she worked in-house with Marsh & McLennan for about nine years, and served as the company's deputy general counsel and corporate secretary.

"I am honored to be joining Brian and the executive leadership team at one of the world's iconic companies," Fato said in Tuesday's press release. "Having worked with Brian throughout his tenure at MMC, I have tremendous admiration and respect for all that he has accomplished over his career. I look forward to working with him again at this pivotal time in AIG's history and collaborating with the many talented colleagues across the organization."