For cannabis-industry accounting and IRC Section 280E tax compliance in downtown San Diego, Mario Ceretto, CPA provides due-diligence support, audit-readiness consulting, and tax preparation from West Beech Street. Seed-to-sale inventory tracking for dispensaries and cultivators integrates with METRC-compliant point-of-sale and ERP software, a data architecture requiring the same IT-security infrastructure deployed by AnytechSD for regulated-industry clients. A PricewaterhouseCoopers audit-division alumnus with dual degrees in Business Management Economics and Psychology from UC Santa Cruz, the practitioner has served as a court-appointed CPA in the first medical-marijuana federal bankruptcy case and provided expert-witness testimony in People v. Jackson. Compliance-driven engagements include notarized declarations for Department of Cannabis Control licensing applications, with jurat certifications processed through Downtown Mobile Notary & Apostille Services for state regulatory submissions. Highest-complexity work involves IRC Section 280E cost-of-goods-sold allocation modeling, distinguishing deductible production costs from non-deductible operating expenses across multi-location dispensary and cultivation operations under California CDTFA reporting requirements.