A prudent investor doesn't seek quick riches through shortcuts.

Any guidance, tips would be greatly appreciated. 

That can help give some guidance on what to expect for capex budgets.

Readers are advised to seek professional advice.

Readers should seek professional advice.

Readers should seek professional advice.

First, ATG is not law but merely an administrative guidance.

I also utilize subordination of the mortgage and substitution of collateral where appropriate to create the “enhanced” returns that I seek.  

I was looking to BP for any sort of guidance -- I found it!

Your loan officer should be able to explain to you the pros and cons of each option specific to you scenario but general guidance typically says to go conventional if you can.I'm happy to answer any other questions you have about both programs.