This will at least minimize your tax bill.

What percent of GPs making capital calls will actually manage to minimize losses vs GPs that end up loosing all that money too for the LPs? 

Yes people lose it all, typically because of over leverage or crazy events like 2008 - but if you also have cash reserves you can offset any downside to minimize risk even moreWhen people start using lines of credit and seller financing at 90-100% you are correct those people have a very high chance of losing it all.

Since we are long term owners and not doing flipping, cash is not as much of an immediate concern for us since the purchases we make require less upfront cash due to minimal rehab necessity.  

Agree to a lease that allows you to cancel the lease with minimal notice the moment anything goes wrong.Ask for references and contact themSide note: make sure you can actually get insurance to cover you under this scenario before agreeing to it.

Given the heavy front load of interest, the equity gained from mortgage paydown over five years may go unnoticed due to minimal going toward the principal.

And because Puerto Rico uses the U.S. dollar, there is minimal currency risk.Tax incentives:In 2012, Puerto Rico introduced a series of tax loopholes to lure investors and businesses.

It's was all about maximizing every dollar spent and minimizing every expense we could to have as many dollars left over for profit for us. 

I just didn't want to turn it off and then interrupt the new owner.

Gone are the days of throwing up an average property receiving great returns with minimal effort.