Trying to read between the lines here... it sounds like Rusk's board fined him without going through the statutory process for levying fines which does include the necessity for an opportunity to appear before a fining committee, and requires the fining committee to approve or reject any fine levied by the board.
If you were in a condo,
this 2012 DBPR Arbitration ruling would be just what the doctor ordered. Failure to follow due process in levying a fine resulted in the DBPR declaring that the fines were invalid and unenforceable.
However, the Florida DBPR will only consider HOA disputes regarding elections and recalls. All other disputes are subject to statutory pre-suit mediation and only when that fails may the unresolved dispute be filed in court (FS 720.311).
I think your only recourse is pre-suit mediation followed by a court action. The options are few. The same applies for the accusation that the board violated its own governing documents by improperly imposing a special assessment. Ready those documents carefully because the Florida Statutes do not require owner approval of assessment increases or special assessments. Only your own governing documents can do that.