My Neighbor Is Being Forced By Our Other Neighbor To Remove His Newly Built Pole Barn. Looking For Advice Regarding An Appeal.

I live in PA, US and my neighbors John and Cathy (not real names) have been sued by our other neighbors, Michelle and Gang, over their new pole barn and the Judge ruled the building comes down. There are several other neighbors on the lawsuit (referred to as Gang). John and Cathy were given a permit by the township for the building and as soon as it was finished they were served papers informing them of the lawsuit against them.
Our Covenants state that no building shall be erected without review or approval from the Land Developer, and no approval shall be unreasonably withheld. John and Cathy did not reach out to the Developer for approval because they were not aware of the Covenants stating such. This was the main leverage that Michelle and Gang had for suing. John and Cathy then reached out to the Developer to try to seek approval, and the Developer responded that he wanted nothing to do with the situation and refused to participate in any approval or denial. John and Cathy’s attorney investigated everyone’s property in our housing division and found that every property that erected new structures also did NOT seek approval from the Developer either, myself included. But nobody else is being sued for this, only John and Cathy. There are also several Covenants and Restrictions that are being broken by Michelle and Gang on their properties.
John and Cathy are appealing the ruling, but they said the Judge didn’t seem to really even consider their side and what their attorney presented, so they are not hopeful the ruling will be overturned.
Some possibly relevant information: Michelle hates John. Within a few weeks after moving into my house, Michelle was on my doorstep introducing herself which turned into a diatribe about John. Michelle accused John of trying to run her over with his vehicle, accused his son of breaking into her car in the middle of the night, and stated John and Cathy were trying to build and operate a dog kennel on their property. I was already friendly with John and Cathy at this point, so I told them what she said. They said Michelle has told everyone about the dog kennel and it isn’t true. Cathy is a dog trainer and the main plan of the pole barn was to allow her to host donation-only dog training lessons. The most dogs that would be in the building at any given time would be 2-3 and always with a human, and never boarded. John provided the main source of income for himself and Cathy, but he has a degenerative and progressive genetic disorder that is becoming more apparent in his life and he will likely soon have to stop working. The building and dog training lessons were John and Cathy’s way to make sure Cathy could make money when John is no longer able to. It was never intended to operate as a dog kennel, and Cathy has always been clear that is not what it is for. You need specific licensing and permits to operate a dog kennel, none of which Cathy has applied for and never will because she is not interested in running a kennel. Michelle has approached every new neighbor since I have moved in to tell them about John and Cathy’s dog kennel operation. The new neighbors next to me have never even met John and Cathy before, yet they are included on the lawsuit against them. So, what’s really going on here is Michelle has a personal vendetta against John. I feel terrible for John and Cathy, especially because they are honest and hardworking people that were already struggling a bit to make ends meet, and now they are facing something like $60k++ down the drain.
Is there anything that can be done to help with the appeal? I find it a bit ridiculous that the Covenants state the Developer must review these things, yet when he is contacted, he says he wants nothing to do with it. It’s also stated in the Covenants that in the event of a dispute or disagreement, the Developer shall make the final binding decisions. But he wants no involvement in this case. Is that even OK?