you can take as long as you want to file a lawsuit in court, so long as its within the statute of limitaions.
No, your landlord cannot change your lease without your consent.
Without the tenant knowing? Certainly. Being sued often comes as a surprise. Without the landlord knowing? ... that would be more difficult, but it's possible that someone in the landlord's office initiated the suit based on standard policy without the landlord being personally aware of the details.
can a landlord change the locks on a commercial building without notice
Indentured servant.
NO
Yes.
No, a landlord cannot add fees mid-lease without prior notice or agreement.
A brick
No, a landlord cannot change the payment method for rent without providing prior notice to the tenant.
Yes.
If the landlord provided a key to the tenant, then the tenant must provide a key to the landlord. In fact, under most state laws the tenant may not change a lock without the landlord's permission and a duplicate key provided to the landlord.
Yes, it is possible to file a lawsuit without a lawyer, but it can be complex and challenging. It is recommended to seek legal advice or representation to navigate the legal process effectively.