I’m surprised more people don’t do this regularly, especially if it a good deal.

Are there any REI Networks that meet regularly that you know of and attend in the DMV area?

And once they're properly concentrated, they're a health hazard.

Since the mortgage payments are about 15% interest rate, after health issues and death in the family, they got into trouble again, and now they late on payments.

Both health nuts so I know it is not them smoking.

As has been stated on these forums regularly, the seller also benefits greatly given the consistent return of the note and at a much higher rate than one would receive from a bank and with less volatility than would be experienced in the stock market.In my uneducated opinion syndication offers higher potential for return whereas seller financing offers more financial flexibility.

If you have one where you are netting $100 a month but have to be in regular contact with the owner as well as mitigate the inevitable problems that arise when then interact with the tenant directly, the juice is just not worth the squeeze. 

My Self Directed Health Saving Account is paying the seller monthly payments and there is a 5 year balloon payment due.

Working directly with sellers is the bulk of the equity capture I need at the buy.Look for tired plexes, carpet and a dumpster in the driveway, yard/moving sale holders, places for rent and to your circle you deal with regularly. 

Should I get an electrical inspection done outside of the regular home inspection since this is an older home?