Hello, @Collette Douglas. My partners and I run a company called Active Duty Passive Income and we work hard with a lot of our folks on working through problems like this. We even wrote a book called Military House Hacking which can tell you almost everything you need to know about what you are asking.
That being said, yes, you must be honest with the VA loan and not screw around with that. It seems you understand that, but just know that the wording is really that you "intend" to live in the house for a year. So when you are in RI you can get the plex and rent out all but yours and be good to go. I would HIGHLY recommend underwriting it so you can ensure you will cash-flow well with property management. You mentioned managing yourself and I would not recommend that while you are building your portfolio. Get someone to manage your property, even the one you are living in (and never tell the tenants you are the owner), and get rid of that headache. Investing is not changing toilets!
As for the house somewhere else, you can certainly use a traditional loan on those, but some banks will give you a hard time if you do not have much experience in that. I would suggest talking to a local bank in that area. Build the relationship and move the account for that property to that bank as well as getting the loan there. They will be more apt to help you with your needs when you have more than one service with them. Don't be afraid of getting multiple project running but certain make sure you have a strong team in place to take care of the problems when they arise!
Anyways, I hope that helps and I would love to help further if I can. Let me know!!!