Clause in mobile park 'rules and regulations' infringing on 14th amendment right?

I don't believe that such rules would fall under the due process clause/ or equal protection clause of the 14th Amendment. First, the rule would have to be a rule that the 'state' (government) made and/or was enforcing; or, such a rule would have to be enforced by the state in an unequal manner. Here, the rule is not a 'state' rule - it is basically part of what amounts to a lease agreement; and it appears that it applies to everyone equally. You own your mobile home, but you do not own the land it sits on; thus, you have to follow the rules of the land owner or move your mobile home to some other place. It is not at all uncommon for landowners to require people whom they allow to use their land to have insurance that protects the land owner. If something happens on your land you are usually at least partly liable for what happened...if someone falls off the porch of your mobile home, the landowner wants you to be insured for that. There are certainly a large body of statutory laws that protect the rights of mobile home owners - but, I don't believe this falls into any of those laws.