Have you seen shoddy flips with cheap materials, and do you ever advise clients to bid low and redo the work themselves?

Yes, we see plenty of cut-rate flips, and how deep the problems go decides the play. When a flip has good bones and only smaller missing details, negotiating a repair credit for those items works well. We have closed homes that way. When the work is broadly poor, no credit really makes it right, because you cannot tell where the corner-cutting stops or what is hidden behind the walls. Visible sloppiness is usually a signal that the parts you cannot see are worse. In that case, rather than bidding low and inheriting the unknowns, it often makes more sense to find a comparable non-flipped home and make your offer there. Sellers of unflipped homes tend to know exactly what they have and price accordingly, but at least what you see is what you get. If you do buy a flip, lean hard on inspections and be willing to walk if the credit does not cover the real risk. Bidding low to redo the work yourself can pencil out, but only when you have priced the full scope, not just the visible fixes.