Contact the California Department of Housing and Community Development to obtain the Information-Title Search Request form. This must be filled out to get information on who the mobile home is registered to. You can call the department at (916) 323-9243 to request the form or download the form off of their website. A link to this form is in the resources.
Fill out the form with all the information that you have on hand. Knowing the last owner is helpful as is any information on the make, model, serial number or decal number. Sign and date the form.
Mail the form in to the department at 1800 Third Street, Sacramento, CA 95811 or go to their office and turn the form in. Either way you will need to be prepared to pay a fee up to $35 for the research.