Yes, you may have more than 30 minutes for those depositions.

Six tenants intervened in a code enforcement action, seeking to pursue class claims against the property owners. Defendants sought to take their depositions about issues regarding certification, the intervenors moved to quash, and the trial judge allowed the depositions to proceed, but for no more than thirty minutes each. The Fifth Court granted mandamus, finding that “the record includes no evidence or even argument regarding how a deposition of any length wqould cause intervenors to suffer harm or subject them to undue burden,” and also that the intervenors “lack an adequate remedy by appeal because the order severely compromises relators’ ability to present its case on the issue of class certification.” In re: Topletz, No. 05-17-00315-CV (Aug. 24, 2017).