I am not a lawyer, nor do I play one on TV- however, this post on the US Treasury site might help answer your question-http://www.treasury.gov/resource-center/faqs/Currency/Pages/legal-tender.aspxThe way I understand it- if as a landlord, you are considered a creditor, you MUST accept cash.

With Xero I was dealing with multiple currencies which became a complete nightmare and found a great accountant who sat down and walked me through it.If you find that this is too much work or too difficult you could easily give a bookkeeper a login for you account and they could take over.

Reading Robert K, and with your recent loss there is a new currency  I think you will be enjoying- time.  

While I know working with cash is tempting, It is the currency of our country and it must be accepted.

would you share logistic experience in seller getting notary as well as you pay foreign currency ?

And I do believe the dollars days are numbered as the one reserve currency in the world.  

31,000 US dollars or your currency??

Because I know that you can simply convert currency but I know it's more than that because house prices don't directly equate because house markets are so much different I've heard, do you know if this is true?

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.

I'm visiting with family this weekend, so do not have a lot of time to go find them all, but will try to pull the information together into a blog post in the next 2-3 weeks.One additional consideration which has arisen in the past 3-4 months is the shift in the relationship between the CAD and USD - I sold USD at 1/1.2245 last week and the currency jockeys are indicating we could see 1/1.18 before the end of May.