3 grand for an appeals lawyer, that's hurts.
Since your denial was in 12',the reasonable time wording of the law(I went thru this 06' to 09') would have to be shown in ciruit court,if you appealed there.
I had to re-apply(another $105 app fee) in 09',retained a Pro-gun lawyer(NRA recommended) for $250,attended first board meeting(determined their paperwork was in error),was told to return to the board 30 days later,gave a speech and presented my OC history(media accounts) and Article 1 Sec. 6,MCL's etc.,and they gave me my permit.
They had used the vague wording in the law(which allows them to "feel" you may be a danger),because any misdemeanor record I had was 14 years or more!
You will most likely pay the $105 app fee,retain a Pro-gun lawyer to represent you($250+?) and make an educated speech(educate yourself on MI firearm law-MCL's) to the board! Been there done that! CARRY ON!