I refinanced before finishing a BRRRR in order to finish the BRRRR and buy a SFH.
We house-hacked a duplex and had completed all the exterior rehab but not much of the interior rehab on our side. The rented unit was mostly done except for the fact that after the tenants moved out, we added a new floor, counter top, and sink in the upstairs bathroom and had to replace the carpet after pet damage.
By this point, we didn't know we were buying a SFH and had started the refi process to pay for rehabbing the unit we lived in (as well as pay off credit cards. We were "walking dogs for dollars" (my version of driving for dollars) and stopped to talk with neighbors who were planning to sell their house. We made a great off-market deal. Of course, after moving to to the SFH and finishing the rehab on the duplex unit, I wanted to refi again, but I couldn't refi the current VA loan because it wasn't out primary residence.
USAA says I need to use a commercial loan to refinance, but if there are any alternatives out there, I'd love to hear about them.