What ever I learn, I apply.

Just call a big bank or local bank to apply.

If a property is bought in cash using no mortgage, does the owner occupancy rule still apply?

The numbers all relate to any rental, except the ARV (After Repair Value) applies to flips and rehabs.

A "short sale" no longer applies, the bank owns it.....there's no longer a borrower looking to sell for less than the mortgage....there no longer is a mortgage.  

However, that's better applied to MFR than SFR.  

(That's an important question for EVERY property you buy).At the start, you will likely have to wait 6 months for each successive refi, but once you get a few under your belt, with accordingly increased ongoing cash-flow, the seasoning periods might be able to be applied to earlier properties once further appreciation kicks in too, allowing you to speed up your deal-making regimen?

I'm pretty sure you can rent it (if 5% conventional) and apply for another loan as primary for 5% down again.The process may be longer than if you get conventinal loan with 20% down but you are spending less money in down payment.I'm thinking of the doing the same.

We could wait it out until late summer/fall when he applies for jobs to see if he gets something in his current field or extends in the military to POSSIBLY get a mortgage but I don't really want to put my eggs all in this basket. 

Conventional you can apply to remove it without refinancing after 2 years, if you have enough equity.Again make sure you align yourself with the right LO who is looking out for your best interests and asking the right questions.