For over two decades, a prominent Miami-Dade County Courthouse suffered from persistent water intrusion that compromised structural integrity and operational efficiency. Despite numerous attempts by prior engineering firms to identify the source, the issue remained unresolved. G.M. Selby was commissioned to perform a definitive, year-long forensic investigation. Our team succeeded where others failed, utilizing a combination of persistent field observation and high-technology diagnostics to isolate the root cause and design a permanent engineered solution.