Longboat Key Town Commission set a higher-than-current maximum millage rate on Monday morning as the town continues to prepare a budget in a climate surrounded by question marks.At a special meeting in Town Hall, Town Commissioners voted 5-1 to set the maximum millage at 1.999, an increase from the current 1.960 property tax rate. The increase would raise an additional estimated $747,500 in revenue if approved in September, but town leaders wer…