William Schultz, the Department of Health and Human Services’ general counsel since 2011, has chosen an uncertain political time to return to Big Law.

He rejoins Zuckerman Spaeder as a partner this week, with his resume from the past five years tied closely to President Barack Obama’s most exalted and reviled policy, the Patient Protection and Affordable Care Act, which Schultz predicts won’t entirely disappear under Republican-controlled executive and legislative governments.