Need advice from experienced investors.

[Joshua Roberts]

I own a 4 unit rental property which produces a good amount of income. I've been watching video after video and listening to quite a few podcasts covering the BRRRR strategy and have become obsessed with the idea. I want to start investing in properties using this method starting early 2020. My question is, should I use the money I have now to rehab my current property in the hopes of refinancing a greater amount of capital out? Here are some of the numbers to make it less vague: I paid 163k for the house, I owe about 140k, I have about 20k saved up. I've also seen some properties in the area with less units go for 250k and up. Thank you