A lot of that is referral based or people find my site online, organically. 

Aside from the risk of taking on the property with tenants, you may also have to purchase site unseen which makes it tough to calculate repair costs. 

Sites such as biggerpockets.com have many syndicators that participate in the forums.

Yes many places taken but not all land is developed , still many plots left passed Rosa nearing the lagoon and on the street on opposite site of beach. 

What are the metrics for determining site selection?

This site makes me believe that we should use a 1065 however since I am involved in the partnership.  

Could be a national lender or a site that sells your info for solicitation. 

Keeping things hush-hush from the on-site staff?

Its generally retail medical operators, so we include things like the market dynamics for our use and why statistically the market and location of the site will be viable form a business case standpoint, and speak to how the startup has enlisted the help of an EMR or other such consultant to help in their general rampup and ability to bill/get insurance contracts.  

It is exhausting to live in a job site and feel like you are bleeding cash, but we've done a couple of times and still think it's a good idea.