Then, refi out into a long term mortgage. 

We focus on year leases and sometimes allow existing long term tenants to do shorter renewals if they're nearing the end of tenancy and moving or what not.   

. - Strict local regulations can also sometimes increase compliance-related maintenance costsCost-saving strategies I've seen help:- Preventative maintenance programs can help reduce overall costs obviously - Some investors report success with in-house maintenance teams for larger portfolios- Energy-efficient upgrades can help reduce utility costs in the long runYour specific costs will depend on factors like the age and condition of your properties, your management style, and the specific neighborhoods you're invested in, but hope this helps!

As long as the military doesn't have any prohibition on you having a house/apartment as your "residence", then I don't see any reason you couldn't.

You either need to become an expert and do SEO yourself or hire an agency that has a complete plan and roadmap for getting you to a place where organic motivated leads are flowing to your site at a rate where you are taking down profitable deals each monthMike Plactere of We Buy Long Island Homes Fast is a perfect case study of someone who used this approach and is dominating his market.  

Yes you can as long as your father will live in the home as his primary residence and you put enough down to cover your portion of the loan that VA will not guarantee.Here are the VA guidelines for calculating the down payment.VA calculates the guaranty as described in the table below.Step Action1 Divide the total loan amount by the number of borrowers.2 Multiply the result by the number of veteran-borrowers who will beusing entitlement on the loan.There is usually only one veteran borrower, in which case the resultof this Step is the same as the result of Step 1.3 Calculate the maximum potential guaranty on the portion of the loanarrived at in Step 2 (as if that portion was the total loan).Use the maximum guaranty table in section 4 of chapter 3 of thishandbook.4 VA will guarantee the lesser of:• the maximum potential guaranty amount arrived at in Step 3, or• the combined available entitlement of all veteran-borrowers.5 VA makes a charge to the veteran-borrower’s available entitlementin the amount of the guaranty.If more than one veteran is involved, VA divides the entitlementcharge equally between them if possible.

I think PR is an amazing long term investment opportunity but you have to be patient.

As long as this 4plex would be in a high-cost area then conventional would still be a possibility for you. 

And what's the long term vision: Is this 1 house or you plan on building out a portfolio?

I couldn’t find a clear answer on how long you had to live in the “primary” residence.