Li-Thian Mariza

Li-Thian Mariza serves as a Procurement Assistant supporting the acquisition lifecycle for landscaping and grounds maintenance services within their agency. In this role, they assist in the preparation, solicitation, and administration of contracts, ensuring compliance with federal procurement regulations and agency-specific policies. Mariza works closely with program managers to define requirements, draft statements of work, and coordinate evaluations, playing a critical support function in delivering mission-critical outdoor maintenance services. Their daily responsibilities include managing documentation, tracking contract performance, and facilitating communication between stakeholders and vendors, contributing directly to the agency’s operational readiness and environmental stewardship goals. Mariza collaborates with a broad network of service providers specializing in landscape maintenance, irrigation, tree care, and seasonal grounds management. While no single contractor dominates their portfolio, they consistently engage with regional and national firms possessing proven experience in public-sector landscaping contracts. Their working relationships are characterized by a focus on reliability, performance-based outcomes, and adherence to environmental standards. Mariza ensures vendors meet contractual obligations through routine monitoring and performance evaluations, fostering accountability and continuous improvement across the contractor base. Mariza’s procurement activities reflect a strong preference for open competition, with 100% of acquisitions conducted under non-set-aside authorities. This indicates a strategic emphasis on maximizing competition and value rather than targeting specific socioeconomic categories such as 8(a), HUBZone, or SDVOSB programs. While small business participation is not formally prioritized through set-asides, Mariza ensures all solicitations are structured to allow equitable access for firms of all sizes, maintaining compliance with FAR Part 19 while prioritizing quality and cost-effectiveness. The agency’s procurement efforts are exclusively focused on NAICS 561730 — Landscaping Services. Mariza specializes in acquiring comprehensive grounds maintenance, including mowing, pruning, snow removal, erosion control, and irrigation system upkeep. Their technical expertise lies in defining performance metrics for outdoor environmental services and evaluating vendor capabilities in sustainable landscaping practices, equipment standards, and seasonal operational planning. This singular focus enables deep domain knowledge in public-sector horticultural and landscape management procurement.