Here's a bit more in detail about how rates are calculated for DSCR loans:1.

Quote from @Patricia Anne Cawood: Can you give me more details about your deal first? 

Ensuring transparency and efficiency in managing owner resources is critical1.Clear Communication on Costs: Provide owners with detailed breakdowns of repair costs and explanations for necessary expenses.

That's another "tiny detail" everyone keeps ignoring.

It seemed like there was no real effort or attention to detail.

Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.The City of Detroit has 183 Neighborhoods we’ve analyzed.DM us if you’d like to discuss this logical approach in greater detail!

Also David Green's book Long Distance Real Estate Investing or BRRR talk about this in detail. 

I didn’t know the details about a project we’re working on, and it showed.Lesson learned: Always prepare thoroughly before each call and be ready for unexpected questions.Failures like this are uncomfortable, but they're how we grow.

Modern codes might require 5 in a room like that.

My advice is to get proposals from several GC’s, compare their pricing, compare the detail of the proposals (make sure everyone is bidding the same scope of work) and ask around about how they have performed on other projects in the area.