Link Evictions to Owners

[ericrobskyhuntley]

We have a previous workflow in place (see process_link_filings() in R/filing_linkers.R). This 1) does basic text processing 2) joins on address/city, 3) joins on address/zip, 3) joins on location within a parcel. There are several issues here:

1. this ties to location, not owners, meaning that we wind up with filings linked to a parcel that an entity might no longer own.
2. it's a wreck with condo ownership and other cases where there are multiple properties on a parcel
3. it relies on geocoder result accuracy.

As such, new workflow should look like this:

0. tie address to address in addresses table (or append if not found).
1. if address not found (or if existing address has no location), associate parcel loc_id with address.
2. join to owners on name/address.
3. join to owners on name (cosine similarity)/address.
4. for those filings unmatched in 3-4, match by name within parcel.