Flipping - Required to be a Contractor?

[William Sullivan]

One of my agents just told me:

"Most people that rehab houses are contractors, they’re not going to hire contractors.  Because, if it were that good, don’t you think a contractor would just do it?”

In my opinion, the physical renovations are just one element of a larger problem.  I can network and find great contractors at non-retail rates without being a contractor myself.  My margins might be smaller, but I'm free to focus on volume and improving the efficiency of my investments.

Have any other new investors faced similar criticism?  What have you done to overcome the negativity that comes with making low offers?