Someone who has gone through a variety of transactions, has a team of real estate professionals, and can offer their knowledge in the REI side of the industry to assist you in purchasing decisions. 

Exact ROI can be tricky to calculate I believe because RE ROI incorporates a variety of factors such as purchase price, rehab, loan pay down, appreciation, cash flow, exit strategy etc.  

Section 8 covers a wide variety of people.

In short, I've developed relationships with a wide variety of people to accomplish tasks.

So I feel the best step would be to locate a variety of lenders and show your success with the first property.

I'm also of the newer variety.

I am also a manager of people and have studied a variety of ways to deal with people in conflict, behaviour modification, and expressing difficult ideas clearly without creating conflict.Should any of these things be of need to you, feel free to reach out and I'll do me best t lend a hand. 

But you'll find a variety of all strategies here on the website.

My stepdad owned a few rental properties when he and my mother first met, so I was exposed to some variety.

Quote from @James Kim:  I haven't worked with them, but I do know this: cheaper doesn't mean better.When someone is charging 50 - 75% less than their competitors, they are probably cutting corners in a variety of areas or they have hidden fees that drive them back up.