The homes could have just been refilled due to circumstances with the old tenants (i.e. financial hardship, divorce, medical issues, etc).

Medical bills, maybe.

I'm appraising a medical office condominium, and the owner's association appears to be undercapitalized... 0.3% of market value.What is the general rule of thumb when analyzing commercial condominiums and the amount of reserves that they should have on hand?

You take pictures, have it repaired, bill the tenant, and follow the lease and your landlord/tenant laws for proper procedures for eviction if they do not pay. 

Check your state landlord tenant laws so you know procedure to enter.Whats your furnace worth,, of course get in and change filters with proper notice.. and anything else 

A few years later, she ran into some medical issues and needed some money. 

For example "I want to buy a 100 unit apartment complex" couldn't be more different than "I want to buy a medical office building".

All tenants are medical offices. 

So I find a cute town home that around my house in Lehi would sell for around $230,000 right now and it listed for only $79,000. its newer built in 2007 and looks great so I drive by it one day when I am working in vernal with a medical sales rep.

Its newer built in 2007 and looks great so I drive by it one day when I am working in vernal with a medical sales rep.