DADU build - Architect and PM-ing the Job

[Susie C.]

Looking into building a DADU. I've talked to some DADU builders that do everything from start to finish (plans, permits, excavate,  foundation, etc). I am considering doing all of this myself for learning experience, but also to help keep costs lower. I work with a contractor that would help with the framing/siding and interior finishes. 

- Architect (helps with handling permits and designs)

- Demo / Foundation  

- Framing / Building  

- Siding / Roofing 

- Interior Finishes 

My question: 

- How do you vet a architect to ensure that they are good and cost effective (aren't going to need multiple revisions because they aren't following jurisdiction policies / code requirements?) 

- Any other tips on things to look for?