Yes - While not legally required, most Texas buyers, sellers use an agent. Recent survey show ~92% of sellerst, and ~89% of buyers used an agent. Hiring a good agent can make the process greater experience. 

Seller must disclose known material facts about the property to the buyer: defects, damage, pest/termite issues, environmental hazards, structural or system problems. Disclosing protects you legally and helps build trust with the buyer.

 Yes—you can submit any offer you wish. In Texas all offers must be in writing. Your agent should help craft the offer (price, terms, contingencies, option period). Seller is free to accept, reject, or counter.

 In Texas, both buyer and seller pay closing costs, broker compensation, title fees, lender fees, etc. Your great agent can provide you with a net sheet that outlines all estimated closing costs and your expected net proceeds.

You should inspect the home’s condition: roof, foundation, HVAC, plumbing, electrical, water damage, pest/termites, environmental hazards, flood zone, and review disclosures. Even with disclosures, visible and hidden issues may exist. We emphasizes disclosures & inspections. 

Work with your great agent to do a market analysis (comparables, location, condition). Many sellers in Texas did minor repairs or renovations before listing. Clean, declutter, stage if possible, address obvious defects, present the home in its best light.

You can list a home “as is,” but you still must disclose known defects. Discuss strategy with your agent to sell at top dollars for your situation. Texas law doesn’t require you to fix every defect, but you cannot mislead or hide known issues.