MEXICO CITY — Lawyers representing the Trump Organization in a bitter dispute over management control of a luxury hotel in Panama City appealed directly to President Juan Carlos Varela of Panama to intercede.

In the March 22 letter, the Panamanian law firm Britton and Iglesias told Mr. Varela that it was writing “to request in an URGENT manner” his intervention in the clash involving the Trump International Hotel and Tower.

The letter acknowledged the “separation of powers” in Panama but cautioned the president that the matter “has repercussions for the Panamanian state, which is your responsibility.”

At the time, the Trump Organization’s hotel management team had been evicted from the hotel but was still fighting to regain control. Several days after the letter was sent, an arbitrator ruled against the Trump company’s request that its management be reinstated.