Hey Ron, there are a few options that come to mind for you. The Portfolio option listed below is one, if you were wanting to take cash out of your all your properties. That being said, you'd fare much better, especially in the non-QM world, with a little improvement to your credit score (Ideally find a lender who can run a credit simulator to see what steps to take to raise your score quickly)
Non-QM lenders tend to either only lend to credit scores over 700, or hit really hard with interest rate for lower credit scores when allowed. If you're planning to refi a big part (or all) of your portfolio, you'll probably want to stay away from what's being offered at a score of 625. Of those I've worked with, there is one that does go down into the 600's on DSCR and possibly portfolio.
There are also some conventional products that might work well too, it really just depends on your goals and what can be done to boost credit. Has anyone mentioned a credit rescore to you?