How can I scale faster?

[Aamir Shah]

I now have 4 rentals. They are cash flowing and things are great. But I am running into the issue where things are moving slowly. 

I use the BRRRR method, so my cash gets stuck until the rehab and refinance is complete. This process is typically around 3-4 months per home. As a result, I can only buy 3-4 properties a year. My goal is to cash flow 10k a month. Assuming each rental nets me 250/mo I would need 40 rentals. That is a 13 year outlook based on my existing strategy.

I hear all these stories on BP about people getting hundreds of units in 1 year. So how did you do it? What am I doing wrong?