Ritter & Company, LLC, Francisco Olvera (Individual Member) Share: AccountantA Full Membership Category Ritter & Company, LLC, Francisco Olvera (Individual Member) P.O. Box 1836 Roswell, NM 88202 (575) 622-8500 (505) 622-8996 (fax) Rep Info Map Whom to Contact Francisco Olvera Phone: (575) 622-8500 What's Nearby? Distance: 5 10 15 20 25 50 mi.