tenants income not keeping up with rents

[LuAnn Vigen]

I have had a good tenant for the past few years. Last month she started running late on the rent, this month it happened again. When I talked to her she said she really could not afford to live in my rental any more and she is thinking about moving out. She is not real motivated, so I am thinking I will eventually have to evict her. Shes on a month to month lease, can I give her a two month notice to leave so I can find a new tenant before she starts becoming a problem? I started looking for a new place for her (hoping to move her along) but its in a small town not sure if I will find anything.