A 3/1 may be 1200 sq ft depending on age for a price point in this range.  

There are several people that this is the case for in different areas of the country.My guess is my Lake house is a family vacation destination and more middle age people use VRBO when looking for a Vacation.

The home inspector should be able to tell you the age of the central A/C by looking at the serial numbers. 

We had to move into a bigger place to accommodate my aging mother, so now dealing with a big mortgage on the new house, 1/2 of small mortgage plus interest-only HELOC.

Kudos to you for thinking about this at age 20 instead of 30.If you want general advice for your situation you can find plenty of that on this website just by looking around, reading articles, and browsing forums.

Always wanted to fix and flip, this was the first deal at age 23.

Externally, it looked kind of ugly, but mostly just aged and dated, so we painted the outside to make it look nicer. 

They get nothing until I die and they are certain ages.

I learned a lot of life lessons at an early age and know better to jump into anything with out doing research first.

Yes, it's illegal to discriminate on age (unless it's a retirement community and do it correctly, then you can discriminate against young people.)