Apostille and authentication processing for all 50 U.S. states defines 123 Apostille - San Diego Notary, a women-owned firm at 1901 First Avenue near the California Secretary of State office in downtown San Diego's Bankers Hill. Hague Convention apostille certificates, U.S. Department of State authentications, and certified Spanish-English translations serve a client base of immigration consultants like American Gateway Center and individuals navigating international document-legalization requirements. Founded in 2001, the firm holds BBB A+ accreditation and maintains dual offices in San Diego and Tijuana to serve the cross-border document corridor between the United States and Mexico. The firm processes notarized affidavits, apostilled birth certificates, and authenticated educational transcripts on same-day to five-business-day turnaround for visa petitions — the document category most frequently routed through Behar International Counsel's immigration caseload in the same First Avenue corridor. The most complex orders involve multi-document FBI background-check apostille packages requiring sequential notarization, Secretary of State certification, and federal-level authentication for countries outside the Hague Convention framework.