I would start looking in the area using trulia, zillow or even talking to a realtor to get an idea of what is on the market, and what you are able to afford.

When you can afford to not have a paycheck for 3-12 months and it not bring your entire house of cards downI've been full-time for 2yrs but I live in a duplex, have no debt except student loans, and spent years honing my craft at living below the poverty so can easily survive leaner times if they occur.

Go with the "base hit" first, swing for the fences later on when you can afford it if you strike out instead.If you are looking for more passive type investments, notes are an option.  

I am can't afford FHA loan since PMI will be will around $350 and it will destroy my cash flow.

Every paycheck, put an amount you can afford into a separate bank account.  

I relocated to help out my Father, who is suffering with health issues.

Most kind of just get the coolest apartment or biggest, nicest house in the best area that they can afford, which is pretty similar in amount.Anyways, if 30% of that $1,500 per month starts going to equity in the property, that's $450 per month.  

In Pensacola the affordable small multi-family units aren't going to be in the best areas but if you can locate something close to the base, even if it's not the best area, you can find very affordable options.

Plus if it doesn't appreciate then you may as well have just payed rent.Can you afford to hold for a few years after the equity builds?

If he needs special housing assistance because of a mental health disorder, help him locate appropriate services.