Some title companies have real estate attorneys on staff. Working with lawyers ensures your client's title is truly clear, and you significantly lower the risk of a claim against the property after closing.
Agents may complain about title clerks and title companies who lose documents, do not thoroughly look into any claims against a property, and overlook issues that could later cause the buyer to lose their investment or fight in court to keep it. Many agents stick with the same title company for many of their transactions because they found a clerk they like who seems to get the job done.