Relationship Lending, 100% financing, and direct lending. Do these deals happen?

[Michael Wolfe]

I am an entrepreneur that has spent the past 2 years studying real estate investing and started my business in July. I have heard of  "relationship lending" and private lenders that work directly with investors with the possibility of 100% financing. All I have found in my search has been scammers and 80-90% lenders. 

Does 100% financing from lenders exist? If so, is there a recommended way to find these lenders and pitch deals to them?