As a partner at Locke Lord in 2013, Martin Jaszczuk was one of the first Am Law 100 lawyers to lead a practice defending the flood of corporations accused of violating the U.S. Telephone Consumer Protection Act.

Since starting his own firm in January, Jaszczuk is faced with the prospect of that torrent of litigation turning into a trickle. And so he now faces the question: What comes next?

Claims under the TCPA in federal court swelled from less than 100 in 2009 to 4,860 filed last year, according to WebRecon, a website that tracks such filings. Jaszczuk rode that litigation wave for years at Locke Lord, leading a practice that grew to about 20 lawyers defending companies such as Geico Corp., Humana Inc. and McDonald's Corp., as well as President Donald Trump's election campaign.