free information on property ownership by address?

Answer 1

Your question is too vague to give a reasonable reply. Please clarify.

Answer 2

Your county assessor and recorders websites. Google search the name of your county and assessor and name of your county and recorder, like this for example: "orange county" assessor's office or "cuyahoga county" recorder's office.

You'll need the address or owners name or pin or parcel number of the property.

This info may not include new assessments due to referendums and new laws, but it is just about the most accurate you'll find.