Do township supervisors have immunity while haring people?

We are a small business that is operating a gravel pit that is licensed and bonded, but the township supervisor lives right next door and keeps haring us. He is trying to get us to close the pit and that will put people out of work. He is also allowing illegal pits to operate within 2 miles of our legal pit. We have been to numerous board meetings in which they keep adding restrictions to our pit. Is there anything we can do? we are loosing a lot of money and spending a lot of money fighting to keep our jobs and pit open. The supervisor has also kick board members of the board that vote in favor of us keeping the pit open and replaced them with people he picked that will vote to close the pit. At the last meeting they approved a pit within 1/2 mile of our pit to open with no restrictions. He has also called PCI to have inspections done on our pit 32 days in a row saying we had violations and not 1 violation was found. WHAT CAN WE DO?? we are very desperate. IF you know any lawyers that could answer this please let me know. We are in michigan.. THANK YOU for your help