Seller lied on condo allowing dogs, getting fined, need help

Need help badly, but I'll try to keep this brief. Bought a place in NJ back in August, with contract stating that I had dogs, and would only buy the place if dogs were allowed. Everything went great, closed on the condo, and lo and behold, a week later got a visit from the management company representative that dogs were not allowed, and if I did not get rid of them, they would charge me a hefty fee.

Upset, as I had my closing attorney look over the bylaws and master deed, I looked over them as well, and had found no such regulation. I brought this to attention to the board, which they stated that the seller lied, and he had altered an email which he sent to the realtor, in which a current member had stated that dogs would be allowed.

In additon, they also stated that the management company gave me the wrong bylaws, after asking multiple times (I have emails to prove this), I still have yet to be provided with the correct bylaws stating that dogs are not allowed.

I do not want to lose the place, as I made it my own and I love the building, but I also do not want to lose my dogs. Please help, I don't know what to do.

Tldr: Never received any document showing that dogs were not allowed, getting charged fees, seller lied about dogs being allowed.