I'm renting a room in a house in Minnesota, USA. Upon telling my landlord that I was looking for a different place to rent because of her dogs constantly barking at me (and even biting me), she immediately stated that I need to provide 60 days notice and that my rent is now due on the 1st of the month, despite paying my rent on the 6th of the month for the 9 or so months that I have lived here. From what I understand, Minnesota law states that 30 days notice is required when there is no statement in the lease agreement, and we didn't sign any lease agreement. Everything was verbal. I even asked them how much time they would like for a notice before I move out. The other landlord (who had basically done everything as far as showing me the unit, telling me their price, etc) said that two weeks would be OK, but more time was preferred.
Is it legal for a landlord to say my rent is due 5 days earlier than we had verbally agreed? Is it legal for a landlord to do this right after I tell them that I am planning on moving out? I found somewhere that any action such as raising the rent within 90 days of a tenant action could be considered retaliatory in nature by law.