You have received a lot of good information and some a bit harsh. The short answer is, yes, you will need a TISH report. There are a number of qualified inspectors that will do the report and necessary paperwork. That being said, the TISH is only one area where expert advice is needed in navigating a successful sale of a home. There are different types of representation in Real Estate. In your case, the, since you have a buyer, your best option is a facilitator. This person would provide you and your buyer w/ all of the necessary paperwork and legal documents needed for a successful close. There is a fee for this service that can be negotiated and is significantly less than the typical commission. Once you have the paperwork complete and signed, you will need to select a title co that will do the proper title work required to change the ownership.
As you can see, there is a lot that goes on in typical real estate transaction that isn't always apparent to a typical buyer/seller. If you would like to give me a call, I would be happy to show you what you will need and help you to make the best decision for your home.
I hope this was helpful and wish you the best of luck.