Do landlords allow people to move in that are not on the lease?

It is not legal to move into someones property without their permission. So, any tenant pulling this BS is participating in criminal activity on the property and can (SHOULD) be evicted for it.

Tenants do NOT have the right to determine who does or does not live in property they do not own themselves,

Yes, that would be a violation of the lease contract.

1. There is a limit to the number of people who are legally allowed to reside in the house. I believe this is based on the number of bedrooms.

2. Good landlords do background checks on all people residing in the home to ensure that there are no felons, known drug dealers, or other undesirables residing on the property. If the only problem is that this person has bad credit, it shouldn't be a problem to add him to the lease assuming he's not taking responsibility for the rent.

You may have a guest stay over. The number of days a guest is allowed to stay is or should be outlined in the rental agreement or lease agreement.

You are not allowed to simply move someone into your rental agreement that yo so desire. A landlord has a right to know who reside in his rental unit.

#1. There are also immigration laws against illegal aliens that the landlord might be fined or jailed whether he know or is not aware of illegal aliens residing in his property or not.

#2 There are criminal elements that the landlord would not want to reside in his rental units.

#3 There is additional wear and tear to a rental unit that has more individuals staying there than would normally be authorized.

#4 There might be local laws that would prohibit a landlord from housing those that are not on the lease.

Even though you might know th e person and would think they would be ok, legal matters are another thing.

You could be evicted from your rental unit for a lease violation for allowing a person, not on the lease to stay for an unlimited number of days. It matters not that you are paying the rent on time, it is illegal for this individual to be there.

I hope this has been of some benefit to you, good luck.

"FIGHT ON"

Besides maximum capacity limits, landlords are weary of having overcrowded units. There are often lease provisions about guests/visitors and the length of time they are permitted to stay continuously. Read the lease, that is the most important thing to know.

No, the Landlord cannot do that otherwise the tenant can go to the court.