Cool stuff and looks like using tech for right purposes. Is the code open-source? I can imagine the data would be strictly confidential as it involves real people.
Sounds challenging..and agree that adapting this to each municipal area would suck big time of effort.
I tried something similar but mostly to figure where the land is being purchased recently in a region. But then land/parcels/addresses system is all over the place and, even that info is not consistent across cities.
have you looked at data providers who may have this data?
Any cities south of the border?