Looks like Schaare's came from Northern Germany above Franconia
Both of you might try
the Surname site............
http://christoph.stoepel.net/geogen/en/Default.aspxThen try the appropriate State Mailing list or Board in Germany (177 of them) and post there.
German Telephone book
http://www3.dastelefonbuch.de/?la=en&cx=&cy=&sp=...