Before payout of each phase, get a visual inspection confirming the work was done to your satisfaction.

Happy to share what I use for estimating rehab costs - there isn't a fool proof way to do it but it comes pretty close considering you'll want updated pricing for line-items regularly verse having to do a bunch a work to research recent prices every single time for every single property.Always your best bet is to create a scope of work - as mentioned above, a list of all the obvious items that need attention that you can visually see or know from an inspection report.

Help everyone to visualize it. 

Detailed house plan with 3d visualization.2.

Visually, they're nearly identical but actual ladybugs do not tend to infest structures, while asian ladybeetles are well known for doing so.

They point out possible deficiencies in the property (only the ones they can visually see!)

That illustration was intended for you to visualize the relationship between prices and interest rates. 

I feel like they can better visualize the improvements I made.

Most folks upon physical inspection prior to writing a contract could see the error.. or maybe not  I guess lots of folks cant visualize. 

Come prepared with a list of things you're good at so people can start to visualize how they might work with you.