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.

Paint colors, flooring, price per sqft labour and materials, etc...

How do the course material help you?

I have been trying to find if there is a wall assembly material that can act as stuctural, shear strength, insulative, interior surface and exterior surface.

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.

The book references these materials quite often, and I don't see a way to get it unless it was purchased from the BP website. 

.- Property Specifications and Quality: Detailed Specifications: Get a detailed specification of the property, including materials, finishes, and fittings.

Looks like one valley + five stacks/vents to flash = materials about $80.  130 ft of drip edge flashing at $50.  2 coils of nails at $60.