Bed bug protocol when a sampled unit is infested

A sampled unit with bed bugs is a deficiency, a treatment plan, and a neighbor problem all at once. This thread is for protocols: how you document treatment, how adjacent units get inspected, and how you handle resident preparation without turning inspection day into a crisis. What has your pest vendor's timeline looked like?

A bed bug find in a sampled unit tests everything at once: the treatment contract, the resident relationship, and your documentation habits. The units next door, above, and below are part of the story whether anyone likes it or not, and the treatment timeline has to be real — prep, treatment, follow-up — not a single spray and a prayer. Handled calmly and on paper, it is a deficiency with a plan. When a sampled unit turns up bed bugs, what's your protocol — treatment timeline, adjacent-unit checks, and how do you document it all?