But I agree with your basic premise: CD transactions are more beneficial to the seller than Sub to, while SuB to transaction are more beneficial to the buyer than CD.  

While you can start with a written agreement, a professional document will help protect both of you, particularly in terms of ownership, responsibilities, and profit-sharing.

They will handle the collection and distribution of payments, amortization, escrow accounts, and any tax documentation. 

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

., multiple owners, estate planning, or asset protection concerns), consulting an attorney may be beneficial.2.

You want to make sure the document you signed with them clearly spells out their job duties and responsibilities.

Beginning this year I am trying to be on top of recording and documenting everything related to my real estates.

@Clark Harbaugh, Given the favorable tax rulings over the last few years (in particular revolving around trusts and their equaling a beneficial interest in the underlining propery) the IRS has actually been much more lenient (or at least silent) on these issues. 

I won't quote this since the Northeast is a very different animal than Texas.You best check to see what is required by the Building Dept. as far as documents and what seals, and then work from there.

Is it beneficial to look for QIs closer to the property or location is irrelevant?