If it really weighs on you so much and you want to police the activities of your tenants, just honestly tell him that you're not comfortable and demand an explanation.

not to be a forum police, but this topic has been beaten to death. try the search button next time.

We haven't descended into landlord-hating rabble-madness quite that far just yet in my municipality (the duplex is located just outside the legal boundaries of the City of Pittsburgh in an independent municipality). 

You can speak with the police and see if it's possible to file a nuisance complaint.

Be careful about trying to save a couple dollars on your insurance polices because you will definitely regret it once you get a claimed denied by one of these unknown companies.

The last thing I need is the police disturbing my daughter for something she hasn’t done.

Sounds like it is time for cameras and the police..............all the best!

You can't evict them and the police will be of no help. 

Breaking these rules will threaten the tax-advantaged status of the IRA investments and could cost the investor a lot of money, so the key guidelines should be reviewed.An IRA may not have a “transaction” with or for the benefit of the following “disqualified persons”:The IRA owner.The owner's spouse.The owner's ascendants (parents and grandparents).The owner's direct descendants (children and grandchildren).The owner's direct descendants' spouses.Certain fiduciaries (CPAs, attorneys, financial planners, etc.).Retirement plans held by disqualified persons.Any entity that these persons own or control.

If they are not registered, you should give the tenant a deadline on getting the cars moved or you will need to work with the local police department to have them removed.