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. 

Also in this time period there was a murder on the block before mine which is very uncommon as this street doesn't see much crime...I just hope the buyers don't back out.Because I'm sure some will ask...I am not able to put the insurance money in an escrow account for them to have the repairs done.

Where are you feeling the pressure yourself now, what are you not able to get done that you're wanting to?

No bad, not great, and definitely not able to retire.But it is a start.  

I assume this is saying that the buyer is not able to sell the property to anyone other than a non-profit, and the "option to purchase agreements" part is referring to going under contract correct?