Unless someone here is a realtor or attorney in addition to being a notary, we cannot help you. Notaries outside the Louisiana notaries cannot provide that paperwork or the legal advice for them. You'll need to find out what the legal requirements are in Texas - I say outside Louisiana because LA notaries are more highly educated and qualified and have more diverse authority that your conventional notary public.
You'll need to do some google searching for the information you need - including making sure you comply with all Seller laws in Texas (contract, disclosure, etc etc).
Sorry we can't help. Good Luck