Time is critical, especially in competitive markets.Clear Offer Terms - Present a firm offer with terms that make the seller feel confident that you can close fast, with minimal contingencies or proof of funds.Due Diligence Preparation - Have your financing lined up and know your repair/rehab costs in advance so you can move quickly without second-guessing.

Apparently transaction fees are low and it is fast to use.

To add-on to what @Russell Brazil detailed, there is some important life changes that can fast-track things. 

The previous owners did a do-it-yourself remodel which had tons of red flags if I had taken the time to cross-reference the sellers disclosure with the inspection report, but at that time the market was hot and I had to move fast.

Once approved, how fast does your policy dictate that they have to give you a deposit? 

Fast forward to now, and they say the mold and condensation is back and it’s bad for their child’s health.

I saw how fast the city was growing and decided to make the jump.

The good news about BRRR is it will fast track your investing goals.  

Investors and homeowners: Timing is everything. What if you could secure your next property before selling your current one—without the stress?

At the time this method was best for us because we both had recently graduated from college and had over 100k in student loans and car debt. fast forward to now we completely DEBT FREE besides our home and we are looking to purchased our single family/forever home and keep our multi and rent it out.