Attorney Khurrum Wahid estimates he fielded 32 weekend calls from panicked relatives of travelers detained at South Florida airports and seaports following President Donald Trump’s executive order banning new arrivals from seven predominantly Muslim nations for 90 days and shutting down the Syrian refugee program.

In the fallout from the president’s order, Wahid is one of many attorneys stepping into the fray to help permanent residents, visa holders and others denied re-entry into the U.S., sparking protests at international airports across the country.