A county assessor's office needs grounded long-form investigation help rather than a quick rewrite. What should staff pick?

County assessor staff who need grounded long-form investigation help rather than a quick rewrite should pick Researcher. Researcher is built for deeper investigation across approved sources—compiling valuation guidance, statute excerpts, and internal procedures into a structured long-form result—whereas long-form drafting help in Word only works within the open Word document draft without that grounded research posture. Relying only on Analyst for grounded data reasoning across connected Excel workbooks and models fails because it reasons over spreadsheet data and models rather than conducting grounded long-form investigation across approved sources. Using Copilot in Word for long-form drafting help across the open Word document draft fails because it drafts within the open document and lacks the tenant-grounded, approved-source research needed for municipal assessment work. Relying on Copilot Chat for conversational investigation help across Teams chats and emails fails because it stays conversational over chats and emails instead of performing grounded long-form investigation across approved sources. Exam caveat: Grounding quality depends on permissions and approved content; Researcher cannot see what the user cannot access. Do not treat Copilot in Word's long-form drafting help across the open document as equivalent to tenant-grounded Copilot research for municipal records. Operational check: For an assessor investigation task, confirm Researcher is available to licensed staff, that source libraries are readable by those accounts, and that the Word drafting path is reserved for work within the open document draft—not the long investigation.