We have bought REO and foreclosure properties but have stayed away for the past few years for the following:1) You are not able to get in and look at the property before buying it. 

Certainly, if the decline of a dollars value accelerates, so will the demand for real assets, most notably cash flowing or prime real estate. 

Also if you know of any end buyers just in case I’m not able to make the deal work I’d like to visit the option of assignment fee.

Also it hopefully gets the dirty dishes in a dishwasher instead of a giant stack in the sink. 

Occupancy plays a very important role for those wanting to generate a notable income from short-term rentals.

Also he has hepatitis last year some medication put him not able to work but he is recovered now and back to work again. ( there was late payment show on last few month of 2017 because of that particular medical condition.What do you guys think of that matter?

If you're not able to make it you should ask your agent to attend.

My question is what drawbacks are there or disadvantages are there with seller financing besides the usual being locked in and not able to move the property if needed. 

I’m still looking into solar panels for the primary house.I am not able to find many specific ideas online besides the two mentioned above .

Be safe because if you're not here, you're not able to help.