California Department of Housing and Community Development may require a bond to support the issuance of the California Certificate of Title when regular evidence of ownership is not available.
The first step that is required by the department is to present a Statement of Facts, https://www.hcd.ca.gov/manufactured-mobile-home/docs/hcdrt476.6i.pdf. The following information is required on the form:
Explain the circumstances of how possession of the unit was taken (how, when, and from whom the unit was acquired).
What effort was made to contact the last owner(s) of record to obtain evidence of ownership and why it is not obtainable.
Provide the current market value of the unit. NADA guide or current tax assessment can be used to find the value.
You will submit the Statement of Facts to the Department of Housing and Community Development. They will contact you stating if you can proceed with the bond.
Next you will purchase the bond using the value that the state has accepted. Submit the bond within 30 days of the effective date to ensure the state will accept it.
Department of Housing and Community Development, Mobile Home, Truck Campers, and Floating Home Bond Requirements: https://www.hcd.ca.gov/manufactured-mobile-home/docs/hcdrt480-0.pdf
California Health and Safety Code Section 18085-18093.5: https://leginfo.legislature.ca.gov/faces/codes_displayText.xhtml?lawCode=HSC&division=13.&title=&part=2.&chapter=8.&article=3