Attitude from tenant

[Ann Baker]

Hello, got a tenant who has an attitude where she thinks she's the boss who does whatever she wants. When asked to do something like opening her yard so contractors can come in, she argues back and says to tell them to just jump over the fence even though she's able to unlock it for them. We had some old  wood pieces that had been left in her yard when she first moved in, so we told her two years later when we remembered them that she can dispose them if she doesn't want them there. Her yard is a few steps away from the trash bin and she replies that we need to remove them ourselves. What's the best way to handle this situation with an uncooperative tenant who is not pleasant to interact with? She's on a month to month lease.