FHA has the appraiser check inspect the house for health/safety and to make sure there is good life on the roof and systems. 2.

Its easier to trust a Guru who preaches great returns than to buy something that doesn't have as good returns in your backyard. many people will follow where they are told the easiest way to make money is its human nature.

I priced it only about 14% higher than the long term rental which matches traveling health professionals' budget on Furnished Finder.So I'm leaning toward longer term rental because even if I secure midterm tenant, that 14% more isn't really worth the potential vacancy. 

This helps you, as the buyer, understand the health of the asset.Where in the post does it say anything about what a seller makes?

You can always request Medical Documentation: Request documentation of her medical situation and a letter from her doctor to make sure her condition will improve and ask if she is up for taking care of the property while she is recovering.Check Her References: Contact previous landlords for references to get a sense of her reliability as a tenant.Lease Terms: You can always start with a 6 month or a 1-year lease option if you have a good idea of her overall health condition.  

Tenant risk is lease term remaining, sales/billings from the location, overall financial health of the tenant (i.e. solo practitioner with this one center as their sole source of income and declining billings, will not likely keep the property well maintained, and when they move out, you will have work to do), need for this use and/or competitive urgent cares in area, etc. 

My property manager is getting old and is having health issues.

However, landlords are investing heavily in upgrading office spaces to meet modern tenant demands, such as flexible work setups and health-conscious designs.

If you don't have appropriate funds to enter a physical asset-- meaning physical risks, humans to manage, etc., then it's best to wait until you do or invest in a REIT.You're just not fit...right now. 

You struggle with managing relationships and understanding human behavior, go read some of your own posts.