It varies deal to deal, on one property maybe up to 65% LTV, but if you have more collateral the more likely they can make something work.For example, I've done numerous deals where we place a 2nd on 4-5 properties and the lender feels comfortable lending x amount of dollarsThese are very non traditional loans and no two will ever be the same.

.: Quote from @Erik Estrada: They are technically more expensive than a traditional 30 year fixed. 

If it does and you can't rent your house traditionally without covering $1,000 a month in costs, and you can't sell because the value isn't there, then you're in a pretty frustrating situation. 

All my properties are traditionally financed with 20-30% down on 15-25 year AMs that balloon between 5-10 years.

And the cheapest capital comes from traditional lenders, who will want good credit score and financial wherewithal from the borrower.  

Saying you want to eventually "get out of Section 8" is akin to saying you want to eventually "get out of renting to [insert a traditionally marginalized race/ethnicity/religion]"

I am trying to decide whether or not I should go through a traditional bank (JPM), a morgage broker, or try and find a credit union.

Is it possible to get a traditional loan on the 25% and owner finance the rest? 

Rates are typically higher than a traditional cash out refinance, however at least you are not getting the full loan amount + you have the flexibility to draw/tap in the money whenever needed.

It has Roth component and traditional built in.