(July 19, 2019, 11:18 AM EDT) -- RICHMOND, Texas — A couple that purchased a home in 2015 that was built by Lennar Homes of Texas Land & Construction Ltd. sued the builder on June 20 in Texas state court, alleging that defects in the home’s heating, ventilation and air conditioning (HVAC) unit caused mold growth and that the builder has refused to fix the problem (Charles McDonald, et al. v. Lennar Homes of Texas Land & Construction Ltd., et al., No. 19-DCV-263690, Texas Dist., 240th Jud. Dist., Fort Bend Co., 2019 Tex. Dist. Ct. Pleadings LEXIS 11923)....