Your landlord can evict you and sue for back rent.
Yes the landlord can be sued for breaking the lease.
The tenant owes the rent to the landlord up the day of a foreclosure sale.
If there was a lease, the landlord has an obligation to try to rent the unit after the tenant leaves. If he is unsuccessful, the tenant owes for each month that the unit is vacant, through the end of the lease.
Generally he can go back as far as you owe the rent. But a landlord can only evict you for not paying the rent, not for money that you owe for back rent. If your landlord accepts your money for the correct amount of rent, he cannot evict you for the back amount, but he can sue you for that.
Sure, for back rent, at least.
Generally there is no point in suing a property manager for not collecting rent. It should be noted that the tenant is responsible for paying his rent on time. It is not the responsibility for the landlord to collect the rent. If the landlord does not collect rent and the tenant should send it to the landlord by mail or in person.
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.
No.
This is somewhat you mean by owing rent. If you were evicted for nonpayment of rent than the landlord could sue you for the money you owe in back rent. Since there was no lease involved, your landlord cannot sue for future rent.
Yes, a landlord in Maryland can sue for future rent if the tenant breaks the lease agreement. However, the landlord has a duty to mitigate damages by making reasonable efforts to find a new tenant. If the landlord finds a new tenant, the tenant who broke the lease agreement will only be responsible for the rent until the new tenant moves in.
If you are the landlord and you are at the point of wanting to sue, you need to either speak to an eviction service or a lawyer. You do not want to get this wrong because US courts are very protective of tenants in these circumstances.