When this guide is useful
A project removes part of a property while retaining other elements.
The distinction that matters
Map what was removed, retained and newly constructed. Demolition, disposition and new construction treatment require factual and tax review beyond a study estimate.
A worked situation to investigate
A rental renovation removes interior work while retaining the structure and several existing systems.
The example is illustrative. Begin with the underlying event and its source documents, then separate missing facts from disagreements about their treatment. Work through the checks below in the order that matches your file, rather than treating a completed checklist as a tax conclusion.
Build a traceable handoff
Identify the affected person, entity or property and the relevant period. Keep original evidence, corrections and the reviewer's written conclusion connected. If the facts change after review, preserve the earlier version and ask whether the change affects implementation.