Kohner Properties, one of the largest multifamily apartment operators in the region, is facing a string of lawsuits filed last month in St. Louis County court by local and out-of-town companies. In February it was revealed that Kohner owes several creditors hundreds of thousands of dollars. Florissant Glass Company, for example, said in a lawsuit filed March 17 that Kohner owes it $4,993 plus 9 percent interest from April 12, 2011 for goods and services rendered. “While we understand that…