This question has been addressed in 1 Texas court opinion:
COA14 — February 12, 2026
Darrell J. Harper, a declared vexatious litigant under a prefiling order, sought a writ of mandamus to overturn a local administrative judge's decision denying him leave to file new pro se litigation. The Fourteenth Court of Appeals analyzed the case under Texas Civil Practice and Remedies Code Chapter 11, which permits such filings only if the litigation has merit and is not intended for harassment or delay. The court held that because the relator failed to provide a record or argument demonstrating his proposed suit met these standards, he could not show the administrative judge abused their discretion. Consequently, the court denied the mandamus relief.
Litigation Takeaway
“A 'vexatious litigant' designation is a potent shield against serial filers in high-conflict family law matters. Once this designation is secured, the local administrative judge serves as a gatekeeper whose decision to block meritless filings is highly difficult to overturn. This provides a critical layer of protection for clients, preventing them from being drained by the costs and stress of constant, frivolous litigation.”