This protects the home buyers up to the time they sell the property. Owner's title insurance usually guarantees that the insurer will pay any legal fees for defending against challenges to the title and will pay any valid claims. Even if an attorney has performed a title examination and assumed liability for the work, an owner's title insurance policy could be a good idea. An independent attorney's liability is limited to negligence and does not include responsibility for hidden title problems. Owner's title insurance is a one-time fee, paid at the time of purchase and can usually be included in the closing costs.
Most agents can recommend a list of reputable, experienced insurers.
Prices will vary, so it's best to shop around and compare rates and coverage.