In those instances you can purchase the new property in 'cash' position and do not have to get an additional mortgage. 

If you haven't already, consider looking into whether or not your fiancé would have been covered under the Servicemember's Civil Relief Act (SCRA) https://www.dmdc.osd.mil/appj/scra/In certain instances, things like high interest credit cards and certain loans would be capped at 6% APR, with any overages/fees being FORGIVEN and not just deferred. 

For instance, I'd recommend understanding the average expense ratio for similar properties in the neighborhood.

Whether those laws should they apply in instances when the buyer/tenant does not come from another state could be a legitimate point of contention for a court I suppose.

(For instance, it certainly seems as though quite a few of Evernest's "managers" actually live in MEXICO, rather than the cities in which the properties they manage are!)

VA in this instance ?

The first of course being ability to repay (which borrower should qualify for in this instance since their payment is going down), but more importantly is the loan to value. 

It was for the wealthy, now its the middle class in many instances.

It is near el valle de Guadalupe which is a famous wine route near Ensenada B.C.

This is one instance where I can add property exposure which will increase the bottom line for my clients.