Hi folks
 
I have some rental properties that I had put for sale on MLS but no signs anywhere as they are tenant occupied.  Today I had tenants call me that someone had put up signs in the yard and multiple places in the neighborhood that "House For Sale" with a contact number.  I called the number on signs but there is no response.
 
My tenants are disturbed and this has happened without my authorization.  Can you advice what should be the steps I should take i.e call Police, City?
 Thanks