Looking to build a team that can help acquire my first small multifamily! 

But now I think I'm ready to take that next step and put things into action.

It takes time to build up the reputation, even in a popular area like Sedona.Sedona does have a ton of STRs but it sees in the neighborhood of 5m visitors a year so I wouldn't worry too much.Getting on VRBO is a must IMHO.

My guess is because new and improved buildings have been built?

While shopping for a small multi-family building (3 or 4 units), I would like to get an inspection of the building to get an estimate of repair costs if any problems are found (foundation, roof, electrical, plumbing, heating). 

It's awesome that you're ready to dive in.

Can anyone recommend a design build company that would handle any zoning needs with the city, as well as complete the construction and leave it rent-ready for me? 

To me, you'll have to try 2-3 months and run through an underwriting exercise of a building/properties about 10 times on each one to understand the true pros/cons of each model.

Total cost including acquisition price of $2.35m.I believe we will be able to create a total of 20-30 units in this building. 

It can be found in the “build your team” tab on Bigger Pockets.