Also it would decrease my global debt ratio a lot when banks see that having increase of additional monthly payments of $900 after the refinance which I know the banks won't like and will be harder to use to make purchases. 

ie. income is greater than all your expenses(this includes debt servicing also).then i think you are ok to borrow from one to "temporary" keep a float the other.

If they don't want to be a landlord and/or the property doesn't command sufficient rental income to make it work, they might be compelled to sell ASAP.Given that most VA loans are 0% down, and that active duty have ZERO control over when they get those PCS orders and must sell, an otherwise trivial 2% temporary market down-turn can mean you have to come in with money just to sell your home!

For instance see the article from the Dallas Morning News  (www.dallasnews.com/business/residential-real-estate/20160204-where-home-prices-are-rising-the-fastest-in-d-fw.ece) noting the area on the map that had decreasing prices. 

It was meant to be a temporary use but turn into a very profitable business.

For the most part, you are covering temporary needs (income replacement, mortgage, child care, kids college).

In an up market it will be more than a flat or decreasing market. 

I've traveled around since but the address never changed on my license, I've just had a lot of other temporary addresses and assigned that one as my primary.  

Again in the above case the optimal down payment to maximize the cash flow was $0.We adjust this percentage up or down based on the effect it has on increasing or decreasing the Cash flow output to a level equal to self Financed cash flow or greater.

If you look at the prior two cycles, you can see each of these indicators reach a peak during the middle of the cycle, then decelerate (grow at a decreasing rate) as the expansionary phase of the economic cycle comes to an end.