Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Attorney Katherine Schwinghammer, practice areas DUI-DWI Attorneys. Is located in the city of Arroyo Grande, the state of Southern California. Legal address 1248 E. Grand Ave, Suite B, Arroyo Grande, CA 93420. For more information, please call Not available Your comments* (not for publishing) * — Required information Katherine Schwinghammer ← View details 1248 E. Grand Ave, Suite B, Arroyo Grande, CA 93420, Arroyo Grande, Southern California Not available