YOUNGSTOWN — Christine Mechling arrived at work recently and discovered something disturbing and unexpected waiting for her on a counter. “I called him and said, ‘Do you know anything about this?’ and he said, ‘What are you talking about?’” Mechling, manager of the Capitol Grill in downtown Youngstown, recalled. Mechling told the restaurant’s owner, Hachem Jaafar, about a 60-day eviction notice that had been left to inform both of them they had to vacate the premises by Sept. 1. Mechling and Jaafar were among tenants of 20 Federal Place who received eviction notices, and they shared their stories during a 90-minute town hall meeting Monday evening at St.…