Problem: I have two post types in a one-to-many relationship. I would like to create a custom search View of the child post type, filtering by distance based on an address field in the parent post type, and include other filters based on custom fields in the child post type.
Solution: A View of post type A cannot filter by fields in post type B, so you would have to copy the parent address field into the child posts automatically using custom code, then filter by the address field in the child post type.