Re: Using the Living Room
yes, the LL can prevent a friend from sleeping in the living room.
and, depending on the entire situation and the lease, the LL may have rights to come in to the house anytime they desire and unless the rights to the yard are specifically given to the tenants, the ll has the right to garden in the yard as well.
If the LL is cutting your plants, you can demand that be stopped but unless they are your plants, she probably has a right to do what she is.
actually, in many situations, the LL could prevent the guest in your room even for the period you speak of.
I am not an attorney and any advice is not to be construed as legal advice. You might even want to ignore my advice. Actually, there are plenty of real attorneys that you might want to ignore as well.