Re: bad tenants
I would call them and ask them (the sherrif) Tell them the situation and let them know you want to look at the property because you recently dumped a lot of money into it and are finding things out the in the yard and so on.
Also I would start writing down exactly what happens at the exact dates and times and if possible take a of of pictures. May help substantially if it ever goes to court.
I never meant to be better than anyone, I was just born that way. Its hard being a god amongst peasants!