When to involve the contractor

[George Ozoude]

I am using the BRRRR strategy on small and large MFH. I am needing to efficiently and accurately get repair costs as deals come across for consideration. Any advice on either when in the process or how to start contacting contractors? In general, I have been going with my realtors recommendations. Is there any other route to starting to develop my own trusted network of contractors as I start out here? Thanks BP!