Do we need title insurance when selling owner finance?

Hi, we purchased a small lot of raw land last year and have since improved it and added a mobile home. When we bought it we closed through a title company and had title insurance. Now we are selling it owner finance. Do we need to go through a title company for title insurance again, or can we just have a real estate attorney prepare the documents? The buyer is not concerned about title insurance and I thought it was only for the buyers protection but wanted to get some clarification on this. It's $1k cheaper to just go through the attorney.