Using the BRRRR method

[Sterling Green]

Hello everyone, 

I have a couple of questions regarding BRRRR. If you use a bank do you have to have 10-20% down? If so don't most banks require that money to already be in your account? Also for the rehab project is that your own money too or is that money also borrowed from a bank that you then pay back once you refinance etc.? Thank you in advance!!