Next Door Neighbors Parking Cars in Backyard and Stealing

[Richard P.]

I have a tenant which just informed me that their new neighbors next door are parking their cars in my tenant's backyard, blocking the driveway, stealing their kid's bikes, etc. These new neighbors are just causing all sorts of grief around the neighborhood and moved in about a month ago. The tenant called because she doesn't want to have any more trouble with her neighbors and wanted to ask if I would allow her to have a dog or to fence the backyard. I'm planning on talking to the landlord to see what we can work out, but I'm not sure how the conversation will go. How would you handle this situation? Anything to do or not to do?