A Miami-Dade County commissioner has not disclosed he’s liable for a contractor’s $300,000 mortgage, as required by law, and appears to be financially benefiting from his district office lease, an investigation by the Daily Business Review has found.

State disclosure forms required of public officials do not list a 2010 balloon mortgage obtained from Miami plumbing contractor Javier Cruz, which was co-signed by Commissioner Bruno A. Barreiro Jr. and his parents.