I would have added Owasso to your list, and Jenks is a desirable location, if you can find a property to contract on. 

That's a little easier.Go to Redfin, find 3 properties that had a short DOM that sold recently that are comps in your market, look at the level of finish and design layout and make yours look like that. 

Maybe find a broker who has access to different companies.

Yes they can do averages based on what they saw on the last three remodels. but have zero clue as to the little nuances that pop up on every job.I would find a good General Contractor and pay him to help you with this.

Duplexes are hard to find here as well.

I believe in the power of mom and pop multi family How did you find this deal and how did you negotiate it?

Initially intended as a long term hold How did you find this deal and how did you negotiate it?

How did you find this deal and how did you negotiate it?

Initially intended as a long term hold How did you find this deal and how did you negotiate it?

If your properties are located in city with SB 721 enforcement mechanisms in place, I would contact the city for inspection guidelines and then find an inspector and contractor who understand those guidelines.At the risk of sounding undiplomatic, I have zero desire to pay someone $4K to drill holes in my balconies.