Google can decide to reset or review the site’s Domain History and nullify all links pointing to the domain if the ownership of the domain is not clear or is hidden. Based on this fact, it is recommendable to make sure that your domains are duly registered to avert such outcomes. You can ask your SEO expert how to verify these links before taking appropriate action.
We have written extensively about local SEO in the past. Not so much has changed over the years, but there have been a few notable