Hey there! Yes, I assembled these datasets using addressing plans and community maps provided by the property developer, Hillpointe. I have written consent from them to create GIS data from their records and upload the resulting files to OSM.

You're correct that this was the result of an import. My process involves manually digitizing the developer's maps in ArcGIS, converting the resulting shapefiles to .osm data with a Python script, and importing to JOSM to finalize the details and solve for any conflicts. So all of the raw GIS data is created and freely shared by me, based on records shared by the developer and used with permission.

That's correct! The developer provided the maps to me and asked me to submit them for public access.