I've been to County already and discussed this in detail.

These methods include:Detailed Engineering Cost ApproachDetailed Engineering Cost Estimate ApproachSurvey or Letter ApproachResidual Estimation ApproachSampling or Modeling ApproachExperience or “Rule of Thumb” ApproachFor further details on the methodologies, refer here.WHAT ARE THE BEST AND WORST PROPERTIES FOR COST SEGREGATION STUDIES?

Thank you for your detailed feedback and experience I will be sure to look into Yellowletter HQ! 

Are their listings detailed with good-quality photos?

May I send you over the property details for your purview

Utilize tools like BiggerPockets for resources and calculators, and consider creating a simple spreadsheet to track property details, budgets, and timelines.

Thanks for the detailed response!

While technically negotiable, the Sitzer/Burnett case revealed that the industry practice effectively standardized these rates.

@Mitch Davidson - are you hearing anything different or more detailed locally? 

This will be based on the personal details of your business.