Assumed Name
File a Fort Bend DBA With the County Clerk
A sole proprietor hanging out a shingle as "Sienna Lawn Care" is running under a name that isn't her own, and Texas wants that on the record. The fix is an assumed-name certificate, the everyday DBA, filed with the Fort Bend County Clerk. The rule is per-county: you file with the clerk in every county where you actually do business, not just where you live.
What a DBA is not catches a lot of new owners by surprise. Filing one doesn't stop someone else down the road from using the same name; it's just a public record that a name is in use, nothing more. It isn't a trademark, it isn't a corporate filing, it isn't a sales-tax permit, and it isn't permission to operate inside any given city's limits.
So before you order signs, open a business bank account, or sign a lease under a trade name, search the Fort Bend DBA records and see what's already on file under that name. If the ownership or the name itself is at all tangled, sit down with an attorney first. A DBA gives you a paper trail, not legal protection, and treating it as the latter is how owners get burned.
Source to confirm: Fort Bend County - DBA / Assumed Name