He helped me walkthrough the property, took videos for me and gave me a good visual.

On the other hand, these guys are more of the visual type and know where you can save, and I always say buy the materials yourself and all that.

Also try to make an effort to watch the Webinars on Wednesday evenings; the benefit for me of the webinars has been the ability to see the visuals provided, like the math tools behind analyzing a deal. 

I haven't actually experienced that, however, I was just visualizing possibly having some kind of similar challenges!

I did this on a previous BRRR that required a lot more work and yes, it was hard to get people to visualize.

I would suggest taking time/dated stamped photos (time stamp is an app you can find for your phone if you do not have one) of the work that has been completed and create a visual time line of work performed.

Not exactly route optimization but it does let you map out each address visuall so that you can see where they are.

I have now spoken to various experienced people to get a visual first impression of the location and the building itself.

@Melissa Searing Use the timeline approach to visualize each opportunity. 

If your contractor is honest then they should have no problem showing you visual proof that the work has been completed.