Know the lenders requirements for the loan types you will need.For instance you may find you need to have liquid cash of 9 Months P&I and 100% of the loan amount as your personal net worth in order to avoid personal guarantees on the loan, and your retirement accounts may not count towards your liquidity.Know the requirements of the loan products for the apartments you want to buy.There are no books for that, that I know of--just lenders info.Because without that all else is just scholastic exercise.Good Luck!

Production depends on the owner and the home. 

Here is a fun lil horror story to illustrate the need to line up your ducks FIRST!! 

Not sure what that product is. 

Quote from @Logan Ransley: Hey Matthew, fantastic and in-depth constructive feedback about our product.

A bank has its own loan products and may have some other products they broker out or sell on a correspondent line.

Are these type of little to no doc products getting more common again?

Not only in building wealth by starting early, but also just everything you're learning about life and being a productive successful person.

Its a product we offer, just doesn't get a lot of play, because its a pain to refinance that seller out down the road.

A DSCR product is what you are looking for.DSCR simply doesn't take into account your personal income, instead we qualify the loan on the properties rental income (or projected rental income).Your credit, properties cashflow, loan to value & prepayment penalty are going to be the main determinants on what this loan looks like for you.