Get employer info and closes relative, have tenant update this info each time they renew.Have good screening done.

I'm relatively new to the BP community but have been listening to the podcasts for a while. 

The pipes in the house are relatively old and the house was winterized and thankfully there have been some very minor but fixable leaks, however, the radiators look like water has come out of them I cannot tell if they are in good shape and the technician said the only way to know is when you hook up the boiler.

Most sfh are priced too high relative to the rents they could get.

Any other ideas out there about how to save money related to landlord & tenant service exchanges?

What are some strategies I can use and/or implement to reach retirement strictly off of REI before age 40?

The questions I have relate to the details of the transaction (should the loan amount be the original amount, or the current remaining balance?

Low... is all relative. 

Who told your relatives you could get them 15-20% COC?

Your best best would be to invest in places like Bloomington IL or Champaign where the prices are low and the crime is relatively low.