Three questions, one search surface, one registry spine: which housing authority serves this address, what is the community record at this address, and where is the assisted stock in a state.
One canonical URL. The three lookups that used to live on find-my-pha, demo-property-lookup, and demo-locator now redirect here — same engines, same live registry data, one page. Service-area boundaries are HUD PD&R's experimental estimate; more than one authority can serve an address, so candidates are ranked by jurisdiction signal and always disclosed, never reduced to a single unverified "best match." If we can't state a figure, we say so instead of guessing.