Final Handover Certificate — Public Works Closure

Negotiate the closure of a stalled COP 14,800M public water-supply contract in Colombia: release the COP 740M retención, start the 5-year stability warranty, and sign the Acta de Recibo Final without losing the warranties — across four rounds covering closure-file diagnosis, path selection (salvedades / clean / partial acta), three-counterparty negotiation under hidden political constraints, and the final acta drafting under legal-counsel pressure.