Real Estate Big Data I want

Home Owner - Who owns the property. Business name/LLC or person

Home Address - Street, Unit/Apt #, City, State, Zip

The goal with the data:

I want to determine how many homes in San Francisco are owned by the same person. Many people use LLC’s as legal protection, placing each property in its own LLC to protect themself from a lawsuit. In theory the legal proceeding could only sue for what is within that business(LLC). I want to list all LLC’s that are tied a person and find out how many properties that person owns.