Among other things, it subjects him to the statutes and regulations governing such contracts.
He is only subject to statute if his lease agreement is written and enacted using a statutory entity. (No state shall make any law ... impairing the obligation of contracts) otherwise the jurisdiction is the common law.
His rights to determine the disposition of his property are from where from his right to enter into an agreement is derived. Thus the lease agreement impairs his rights in no way whatsoever. The agreement is in fact his excercise of his rights. His rights have not been diminished in any way whatseover.