These items also have a service life, so It would be intelligent to learn about the different systems features and options that are available to you, perhaps on the Internet.

There is no monthly fee, and no Wi-Fi required, and you can still generate codes remotely.Let me clarify, because the "Wi-Fi not required" thing can generate a lot of questions.Summary: You do NOT need to be connected TO THE LOCK via the Internet.The lock does not need to connect to the Internet at all.

Which is not true and riskier to only gamble on appreciation I think.

A quick Internet search of "Costa Rica Mortgage Loans" turned up a couple of brokers and private equity offerings.You could also try to get the seller to finance part of the purchase price.Or borrow it from your 401K, if you have one.Depending on your credit score, it might also be worth looking at rates from a local credit union, bank, or even Prosper or Lending Club for a personal loan rather than a real-estate secured loan.

I've lost money on deals that I took a gamble - Detroit homes with more taxes owed than the value of the property, and I've made money.What else can I tell you?

It's better than what you'll get from most attorneys and what you'll find on the internet.

I’ve left two messages with her broker, and tried to email from emails I find on the internet but they are coming back undeliverable.

One thing I would add is to include the actual speed of the internet you provide.

NEVER send up front money to any lender that you met on the internet.. the only money you should pay for is a 3rd party appraisal and your check should go straight to the appraiser. 

If you really have a passion for this, you may want to follow and/or try to talk to developers in this food group, such as H5 Data Centers, PointeOne Development Corp, EdgeCore Internet Real Estate, Compass Datacenters, et al.