You get some of the strongest rent demand in the Phoenix area being closer to downtown, and then you position yourself for the upside of the growing North Phoenix economy with TSMC and other economic developments.If you want more info, I can send you the 3-5 most recent properties my clients have purchased in the last month for you to review.

It's a fairly unregulated space (charging grandma $750 to puts around for 3 hours, after moving the old box from the horizontal sensor, which was the only problem with the garage door to begin with), so some combination of carefully reading reviews (you have to actually read them to make sure it's not 200 fake reviews), and maybe not giving them the full contract all at once, is in order. 

These are key reviews for you and your team to review prior to out price confirmation. 

You can also search BiggerPockets and Google for reviews from actual members.

This forum is super helpful too so I try to regularly review what’s going on and be as helpful as possible. 

My suggestion would be to select someone with the most forum posts or most reviews.

You can also hire a real estate attorney off of UpWork or Fiverr to review the documents and give you an opinion just to be sure.

Somewhat unrelated, but I do not allow BiggerPockets to do business with partners who require their clients to sign agreements or otherwise agree to terms that prevent them from leaving what they feel to be honest reviews on BiggerPockets.

We give users the ability to edit a post for 10 minutes after posting for those situations where you say something that you realize upon review needs a tweak.  

I remember years ago our attorney reviewing one such issue for a client that was coming over to us.