Tex. Loc. Gov't Code § 252.024

This chapter does not prevent a municipality from selecting a licensed insurance broker as the sole broker of record to obtain proposals and coverages for excess or surplus insurance that provides necessary coverage and adequate limits of coverage in structuring layered excess coverages in all areas of risk requiring special consideration, including public official liability, police professional liability, and airport liability. The broker may be retained only on a fee basis and may not receive any other remuneration from any other source.