Full-service CPA work covering tax preparation, forensic accounting, and business consulting for individuals and corporations is the scope of GBS Accounting San Diego, located at 402 West Broadway in downtown San Diego's Columbia district. The firm handles year-end financial audits, compilation and review engagements, and entity-structure consulting for startups evaluating S-corp, C-corp, and LLC formations—transaction types that generate parallel activity with Gaslamp Quarter brokerages like Bayfront Real Estate when commercial property acquisitions trigger depreciation elections. Specialty verticals include real estate accounting for developers, agents, investors, and brokers, with services covering 1031 exchange documentation, cost-segregation coordination, and passive-activity loss calculations under IRC Section 469. Tax planning extends beyond business returns to include individual alternative minimum tax analysis, estate tax projections, and succession planning for closely held companies, disciplines requiring coordination with fiduciary advisors like ProFiduciary in the Bankers Hill corridor. Highest-complexity engagements involve forensic accounting investigations requiring transaction reconstruction, disbursement tracing, and expert report preparation for litigation support in partnership and shareholder disputes.