This essentially gives you an infinite rate of return since you should be able to buy with no money into the deal now.

On one hand I can knock on the door and risk the home owner being potentially upset with me because I'm a reminder of their financial troubles, or it could go well because it puts me in front of the seller right away.On the other hand I can leave a juicy piece of marketing material at their doorstep and have them call me without any angst towards me, essentially a warm lead, or it could be they find it easier to throw out the marketing piece and they don't call.I'm curious what you guys think is a better option and what personal experiences you have.

Those items all make for a heating & cooling thermal load that essentially gives you the amount of cooling or heating BTU load required to maintain the occupied area. 

Essentially keep probing with questions until you find out the motivation!

Keep studying and reading about the industry while you do, but by cutting your teeth there you'll learn real-world skills and knowledge for many different forms of real estate investing.That's essentially what I'm thinking.

Of course, you'll need a Separate Series Operating Agreement and an Agreement to Terminate Series for each such operating agreement.The master operating agreement for Housing for Humanity, LLC (of which I'm essentially its manager via my management entity) is more than 50 pages, out of necessity.  

In the process though, I also end up wholesaling quite a few properties every month that don't fit my investment criteria.So essentially I am doing three forms of investing in real estate. 1.

Without any variables, here's essentially what you're looking at... (1) getting the existing 1st mortgage holder to increase its mortgage to provide you the cash out or (2) finding a lender who's willing to hold a 2nd mortgage on property A or (3) finding a lender who will provide you with $X and secure it with a mortgage on both properties A and B.Completely different option that doesn't involve property A would be to try getting seller financing on property B. 

Or is essentially an interest-free loan?

@Tyrone Green - I used Rockwell, and the test questions for the actual exam were essentially the exact same as the ones on the online coursework.