Fla. Stat. § 157.20
Whenever it shall become necessary to raise money for any of the purposes set out in ss. 157.07 and 157.19 the board of county commissioners shall appoint three competent and disinterested persons who are citizens of the county who shall view the work and all lands benefited by said drain or auxiliaries thereto, both those lands lying immediately along said drain or auxiliaries and those adjacent thereto, and shall assess against each parcel of land according and in proportion as each shall be benefited, its proportionate share of such additional cost of such drain or auxiliary above the estimated cost thereof, which said assessment shall be reported to the county commissioners at a regular meeting of said board, which said assessment shall show each parcel of land so assessed, the amount of said assessment and the names of the several owners, unless the said owners by diligent inquiry cannot be ascertained, when the names shall be given as unknown.
Fla. Stat. § 157.20