It will get your source's funds back to them, with "friends" (profit), and establish your credibility with them for the next phase...which is where the free money potential comes in.

Or should I not worry about it and focus solely on real estate? 

I began to look into a hard money sources and the Hardmoney lender Seemed to legitimate and we begin to go through the process and we got to actually making a payment in the payment was 1250.  

Your best bet is to put in the time and effort to source deals and partner with someone who has money for a 50/50 split.

Often, you can get a rough idea of the land height (topography) from an online GIS map of the area, or from another source for topographic information. 

Depending on the source for the remaining financing, they sometimes prohibit the borrower from recording second mortgages.

Account Closed - difficult to find, but you can source financing for rentals here in the U.S. 

I had a few questions pertaining to these documents:Are these a good resource to use for my local areas of interest or should I rely on another source of information?

If you haven't already, I recommend plugging into the Bigger Pockets podcast - that was a huge source of education for me when I first started. 

I am considering signing a master lease on a studio downtown solely to rent out on air bnb and am curious to know if anyone has experience renting out on Airbnb during the "off season" in San Diego.