A landlord cannot legally harass you for rent if your rent is not in arrears.
Your question is not clear, is the landlord baggering you for the rent or is it in regards to something else? Is the rent late? Your rent is due every month (or week), regardless of landlord behavior. But the landlord cannot harass tenants, regardless of reason. They can evict for non-payment, following the procedures dictated by the laws in your state. That said, if the landlord is abusive they can be taken to a standard civil court.
Yes, the landlord falsely claimed that you didn't pay rent, even though you did.
The landlord's bankruptcy has nothing to do with the tenant. The tenant still owes the rent.
Why not? Even family members can rent to one another.
Yes. Your income is unrelated to your rent.
Concievably, yes. If the tenant got a deal on the apartment, and can find someone who is willing to pay even more than the rent, even just to be a roommate, there's nothing illegal about that.
Yes. This practice is called subleasing. If the landlord doesn't allow for subleasing then the tenant can be evicted.
If your friends landlord lowered the rent for him/her and then after moving in with him/her, he/she decides to move out, then the landlord will most likely raise the rent again.
Your landlord can evict you and sue for back rent.
To confirm if you paid your rent, check your bank statements or payment records for proof of payment. If you have evidence of payment, you can show it to your landlord to resolve the issue.
I have to pay rent to my Landlord
Your answer depends on what you want to do.If the rent is paid for the full term of the lease agreement, then the landlord cannot rent the unit until the rent runs out.The landlord may want access to the unit to confirm that everything in the unit remains undamaged.If the landlord wants to rent the unit just because it's vacant, the landlord should refund the 'unused' rent to the departed tenant.