Apparently you just got a preliminary worksheet from title company. Owner's policy will definitely be there, it's not optional, but the cost of it is usually covered by the seller unless there is a special arrangement in place due to foreclosure transaction. You have to ask your realtor and your attorney to check the contract and find out who is covering owner's policy.
Nothing to do with car/life/home insurance provider...
Good luck with your purchase!
Express RE Group, Inc.