If you had any material that you thought would be helpful I would love to take a look at it or we could set up a brief call.

Figure out what the cost of repairs are, including material inflation, time of year, location and market.

You also might want to think about if you plan on throwing away any building materials ... that is good way to tip of code enforcement that your doing work.I think I would just get the permit honestly. 

To manage and create the ad set and marketing materials its $500 a month.

I'm working on building a rehab cost estimator spreadsheet and was wondering if any one on bigger pockets already has the average costs plus labor for common materials (laminate, granite, sheetrock etc.) for today's prices in the Charlotte market.

Make a data driven decision! 

There are too many moving pieces, you need to know contractors, make sure communication is efficient, make sure the materials is needed are in store, make sure no one is over charging you.. just to name a few. 

The note space is a very small relationship driven business.

Sharing one of your hardest to find resources and potentially losing them to another investor is not smart business.Good luck finding a good contractor as most in Detroit:1) Want to be paid in cash and won't sign a W-9, so you can't claim on your taxes2) Want to be paid 50% upfront for labor & materials - which is a good way to lose money3) Want to be paid the day they are complete - which doesn't really allow time to inspect their work for competency and actual completion.

Who paid for the material?