A POA may be used to release ownership on a title or bill of sale. Before you begin: Have the California Certificate of Title with you.Avoid white-out, scribbles, and strike-throughs. Discover how to complete a title transfer in California. Learn essential steps, fees, and avoid mistakes for a smooth ownership transition. To transfer a vehicle with a power of attorney document, you need to draw up that document first. The previous owner signs and dates the front of the title.