A properly structured BRRRR property is designed to give you instant equity once the rehab is done, its also designed to cash flow much better than buying a home that needs no repairs and is rent ready.

What can I do to ensure everything goes well? 

As a result, the pipe was not able to drain properly and once below freezing temperatures came, the pipe burst in the basement.   

I would also be careful if you only have the 20% down and do not have cash reserves, things will go wrong its real estate, you need to have additional cash to ensure you can cover "what ifs."

We're in Los Angeles proper and it took us 9 months to find our duplex in LA - that includes the time we started searching for a property to the time we closed on our first property. 

What zip codes would you guys recommend driving through in Phoenix proper?

My team and I are looking to get our second property under contract and it's a mixed use building- Store front w/ residential apartment up top, and two single family homes attached- very strange...Here's what I know before visiting the property:- It's downtown in a very mall city with a historic board- Separate meters for electric- One bill for sewer and well (I'm assuming it's county sewer but will investigate further to ensure not a septic)- I'm going to ask for the leases and ask the renters what they're paying for rent.As a mixed use building I'm assuming I'd need to dig into the store fronts financials to ensure they're capable to afford the property.

They should be able to save you much more than 15% on repair costs if they know what they are doing, have the proper vendor relationships  and negotiate pricing effectively. 

In addition, even though you would have no financing in your model you can mitigate the risk with proper cash reserves and grow 4 times as fast. 

Erick,Take @Gregory Hiban advice, find a Title company to do the proper searches and to do the closing. what if there are liens on the property ?