The Directors of Mackinac Financial Corporation (Nasdaq:MFNC) (Mackinac), the holding company for mBank, and the Directors of First Federal of Northern Michigan Bancorp, Inc. (OTC:FFNM) (FFNM), the holding company for First Federal of Northern Michigan today announced the execution of a definitive agreement for Mackinac to acquire FFNM through an all-stock merger of FFNM with and into a subsidiary of Mackinac.