Written and signed complaints are accepted against the following types of businesses: real estate brokers and sales agents, real estate inspectors, TREC-approved education providers for real estate and inspection courses, residential service companies, timeshare developers, easement and right-of-way agents, and unlicensed persons engaging in any of these activities. TREC does not regulate and accept complaints against: Real Estate Developers (not regulated), Home Builders (not regulated), Appraisers (see the Texas Appraiser Licensing & Certification Board at talcb.texas.gov), Mortgage Brokers and Loan Officers (see the Texas Dept. of Savings & Mortgage Lending at www.sml.texas.gov), Property Tax Consultants (see the Property Tax Consultant Board of the Texas Dept. of Licensing and Regulation at www.license.state.tx.us/PTC/PTC.HTM), Title Insurance Companies (see the Texas Dept. of Insurance at www.tdi.texas.gov), Auctioneers (see the Texas Dept. of Licensing and Regulation at https://www.tdlr.texas.gov/auc/auclaw.htm, Manufactured Housing (see the Texas Department of Housing and Community Affairs at www.tdhca.state.tx.us/mh/), Plumbers (see the Texas State Board of Plumbing Examiners at www.tsbpe.state.tx.us), or Wood Destroying Insect Inspectors (see the Texas Department of Agriculture at www.texasagriculture.gov).