No, a landlord cannot add fees mid-lease without prior notice or agreement.
Usually two weeks notice, but it depends on the agreement.
can a landlord change the locks on a commercial building without notice
No. If the property is about to be foreclosed, the landlord has no obligation to give the tenant any notice of anything. After the foreclosure, the landlord will have nothing to do with the tenant.
A landlord can give notice to vacate a rental property when the tenant violates the lease agreement, fails to pay rent, or when the lease term ends.
No, a landlord cannot change the payment method for rent without providing prior notice to the tenant.
I am assuming you mean that there is a cause for eviction (non-payment of rent, unruly behaviour, etc.) If so, then you will need to (retain an attorney to) file an unlawful detainer action against the tenant. Note that a 3 day notice is required before filing such a lawsuit--talk to your attorney for more info.
If it doesn't say in the lease, then they don't have to give any notice.
When enforcing a notice to cure covenant or quit in a rental agreement, the landlord typically needs to provide written notice to the tenant specifying the violation and giving a certain amount of time to correct it. If the tenant fails to comply, the landlord can proceed with eviction proceedings through the court system.
Any of the three parties can terminate the tenancy at the end of the next month, with notice this month. Then, one roommate can sign a new agreement with the landlord, without the other tenant.
previous leaks? - notice is the key. without any notice to any parties there usually is no negligence and therefore the landlord is not responsible
With a legally binding tenancy then no.
Tenancy at will is a rental agreement that can be terminated by either the landlord or tenant at any time without notice. Periodic tenancy is a rental agreement that renews automatically at the end of each rental period, such as monthly or yearly, unless either party gives proper notice to terminate.