McCormick Barstow, LLP - San Luis Obispo Search | Advanced Search | New Members | Coupons and Discounts | All Categories Business & Professional Services >> Attorneys >> General Practice McCormick Barstow, LLP - San Luis Obispo P.O. Box 31San Luis Obispo, CA 93406 | map | directions (805) 541-2800 | fax: (805) 541-2802 Visit Site Attorneys: Warren A. Sinsheimer, David A. Juhnke, Herb A. Stroh and Kevin D. Elder. Member Since: 1978 If your business isn't here, contact us today to get listed!