Problem is the cash is losing money sitting.

With units the competition is so strong and the caps are so low that you are an interest rate increase away from losing money on a highly leveraged property.

the same thing would happen I would lose the luxury of having it and they would lose their water service.

You really can't put it anywhere that has risk associate with losing it.  

If they don't they lose.

Drew NA Home warranty companies are in the business to make profit and not lose money.  

I suspect that a few moderators will be needed to boot out the people like the one that posted all lose gain muscle posts in the RE Success Stories the other night.  

If you purchased SFH (with no HOA fees), then you would have that extra $150-$200/mo from HOA fees to go to increase your cash flow, save for repairs, etc.2) Have you considered using some of the excess money (current going to pay down the mortgage) and putting it into an account for each property to cover repairs and eventual replacement of items?

Effective Date: 04-01-1986 5313.07 Proceeding for foreclosure and judicial sale.If the vendee of a land installment contract has paid in accordance with the terms of the contract for a period of five years or more from the date of the first payment or has paid toward the purchase price a total sum equal to or in excess of twenty per cent thereof, the vendor may recover possession of his property only by use of a proceeding for foreclosure and judicial sale of the foreclosed property as provided in section 2323.07 of the Revised Code.

If you have good equity in your own home, that should save you from having to find money that is excessively "hard".