If utilities are off and people claim to be living there, contact code enforcement.

Proper identification of tenants isalso needed if you want any chance of having local code enforcement write tickets against the tenant and not the owner.5.

With a single family house,  you also have NO LEGAL WAY to enforce any occupancy limit on the rental.     

Honestly, the ordinances are so complicated that none of the towns are able to enforce them down to the exact legal language that's in the ordinances (i.e. all of them say that the starting base rent in the year in which the ordinance is implemented became the starting point for all future increases...try to prove what the rent was in 1970 for a specific apartment that was never registered!). 

If they are VERY professional, they will have their processes in writing as verification that policies are enforced equally and fairly by their entire staff.6.

Yea you have a signed and enforceable contract.

@Beth Matherne if you feel conflicted about enforcing your lease, you are going to open a pandoras box.

If they are VERY professional, they will have their processes in writing as verification that policies are enforced equally and fairly by their entire staff.6.

If they are VERY professional, they will have their processes in writing as verification that it is enforced equally and fairly by their entire staff.6.

If they are VERY professional, they will have their processes in writing as verification that it is enforced equally and fairly by their entire staff. 6.