What size would be too small or too big.

Size and private bathroom can change that variable.

Yes, if you plan to grow a decent-sized rental portfolio.

Here’s the catch: I’m not sure how to go about getting a loan with no current employment.

For example, you could print high-quality postcard-size flyers for a direct mail marketing campaign.

Good for both LTR and section 8 rentals depending on what strategy you're looking to employ. 

Hey Felicia,If you have a genuine reason (increase in family size, relocation, etc.) for a new primary, then an FHA loan could actually be an option. 

I would find a market with good median rents, and low home costs, and a location that has some indicators that would support future price growth (pop growth, job growth, large businesses/employers moving there).

I've seen some pretty good sized mods that sometimes blow the deal.  

Not sure how it would compare in size to Orlando.