When it comes to international trade, bad headlines mean good business for some global law firms.

Since President Donald Trump took office and declared his intentions to get better trade terms from China and other U.S. trading partners, including Canada and Mexico, nothing has settled down for global companies or the firms that advise them.

Any lawyers who once thought the initial upheaval would subside have since learned to expect the unexpected. Yet global firms say they have profited in the last couple of years from clients' increased need for expert counsel to help them deal with it all.