What appeal process?
I've been in PA DJ Court to see LL wth dirty hands get tossed by judge on a rent action ...but so far you have not taken the bull by the horns to demonstrate likely violations by LL...A three unit conversion is often illegal , the payment method for the tenant utilities to you is likely inconsistent with PUC regs , theft by deception as to auto shop on your meter may be a crime , unlicensed electrical repairs /no permit may be a problem....so far you have not locked in " problems " LL may win because you have not been proactive.