Begin with Grayson County GIS, the tax parcel, and a city-limit check. Municipalities maintain their own building, zoning, inspection, and code records, so a rural county map is not a substitute for a Sherman or Denison permit search. For unincorporated property, review the deed, recorded plat, subdivision notes, easements, 911 address, and county road documents. County subdivision rules can require floodplain-development language and engineering information. Match the current tract, structures, driveway, and utilities to the recorded configuration instead of relying on a tax sketch as a survey.
Obtain the onsite-sewage application, design, site evaluation, installation approval, inspection, maintenance documents, and repair history for a private system. Use the county's FEMA layer to screen for mapped floodplain, then locate any development permit, survey, elevation certificate, drainage study, claims, or repair evidence tied to the address. Near Lake Texoma, do not infer shoreline rights, flood history, or federal approval from distance to the water. Recorded access instruments and any applicable agency documents should be reviewed on their own terms. A plat note can flag a requirement but does not show that later work was completed.
Once the evidence is organized, price the real alternatives. A market listing could involve permit research, septic service, survey or easement work, an active drainage repair, cleanup, photography, visits, and ongoing utilities, insurance, taxes, and financing. A cash agreement may reduce preparation, yet the contract determines the result. Review deposit, inspection window, cancellation rights, proof of funds, title objections, costs, closing extensions, possession, and personal-property clauses. Ask who handles a missing OSSF approval, floodplain permit, road document, or plat discrepancy. Keep city, county, private, and federal issues distinct so each party's obligation is clear.
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