My servicing company will take care of the foreclosure process by selecting a full service plan with them.

It was a foreclosure the is distressed.

I have over 400 foreclosure/pre foreclosure leads that I got from a realtor friend of mine.

Hello- I am interested in buying a 2nd position lien foreclosure at auction.  

I'm starting out with wholesaling pre foreclosures.

I have seen situations where the appraiser was not given access to a property for various reasons such as a non-cooperating owner (foreclosure) and even a situation where the property was too unsafe for an appraiser to enter.

I have a crew that rehabs most of my foreclosure flips.

Your intitial post mentions: ""Owes= $24,000 (Charged Off but are accepting payments to principle)"If you can get that debt assigned to you then you are in the driver's seat and you have the right to remove the property from tax foreclosure in order to protect your valid lien, whether either brother likes it or not. 

How do I protect myself if 1 of the 10 properties isn't being rented for a period of time and the loan flops and the property goes through foreclosure ?

This mitigates a market melt down.. you have a loan on a MFR that is due in 5 to 7 years and we are in a pronounced down market with credit slow or frozen.. you could face foreclosure just like what happened in 08 to 2011.. even cash flow properties were lost because of balloon payments..