Getting bid for rehab work

[Jason Sung]

I am under contract for my first fixer-upper property. Regarding getting bid for rehab work, I found from Google that I need to make a detailed Scope of Work document and prepare pictures/videos of the property to share with contractors. Contractors then can bid on the project. Is this how usually investors get bid for rehab work? When I talked to a contractor, he wanted to visit the property for his rehab estimate. I would appreciate any advice. Thanks.