I would start by looking at Ohio.

Markets like Texas (San Antonio or Dallas) or North Carolina (Charlotte) could offer better cash flow with lower costs.

Every buyer wants some way to determine if they are being offered a fair deal.

It isn't having paid off properties that offers security, there are still taxes, insurance, maintenance and management involved. 

He may realize the offer he had was inline with the value.

We have zip codes that have lower and and higher end areas within the same zip so not a good marker to use.Going along with that a lot of the neighborhoods are very street by street or change pretty quickly by block, so you have to be aware of that.

Quote from @James Jefferson: Hi, I have a family member that had a reverse mortgage on their property it's a 3b 1b 1 acre of land heats by oil no hvac and on well water.

There are a lot of websites that offer the course online, or if you have a college near you, they also typically offer a class that satisfies the pre-licensing requirement.

@Mitch ProvostFrom my experience of working with over 400 investors, your property near Texas A&M in College Station/Bryan has strong investment potential due to the consistent demand for student housing driven by steady enrollment growth.

This will give you clarity on the numbers and help you determine how to structure an offer that works for both sides.