Refinancing Multifamily

[Jay Myers]

Hello, I started buying duplexes and 4plexes about 2 years ago using the BRRR or BURR method. (Buy, update, rent, and refinance). I've purchased 12 properties, 90% of them being 4 plexes. I have a total of 6 conventional loans and a few commercial bank loans in my portfolio. I recently purchased 2 more 4plexes with money from a LOC, which i plan to refinance asap. It is my understanding that I am allowed up to 10 conventional mortgages. However, It is becoming more and more difficult to get these loans approved. Any advice on which mortgage companies are easiest to work with for multifamily financing? I've used Quicken, Stonegate, and NOLA lending so far. I've heard about portfolio loans, but don't really know anything about them? I'm just looking for advise to continue future purchases. I feel I'm about to hit a roadblock in the near future. How do I keep this from happening?