You can ask a realtor to send you data on the supply of homes.

Anyway, I wanted to know if I could use a partner who would live in the property to qualify for an FHA loan, and then I would supply the down payment of 3%.

Real estate prices are now, and always will be based on supply and demand.

Is there a big supply or tight?

It all depends on supply and demand, market conditions that can change weekly, availability of funds, specific type o deal your business plan directs you to next, etc...

To add to @Michael Jobe, see if a stager can punch up the outdated furniture with some additions, or suggest paint colors to paint.  

When she came back to the devastation, she just took off and left her furniture and everything behind.

Many people cannot afford to replace their collection of electronics, furniture and even replacing clothing is very expensive even if you are building a wardrobe at Wal-Mart prices.b.

For example, since HUD no longer supplies their appraisal to the buyer and the buyer has to get their own appraisal it has made it more difficult for owner occupants to get an FHA loan on a HUD since the appraiser wants to see the utilities on when he does the appraisal. 

Though, it is a small place, I'd have to sell my furniture (more cash, hello!)