Cal. PROB § 11950

(a) If two or more beneficiaries are entitled to the distribution of undivided interests in property and have not agreed among themselves to a partition, allotment, or other division of the property, any of them, or the personal representative at the request of any of them, may petition the court to make a partition, allotment, or other division of the property that will be equitable and will avoid the distribution of undivided interests. (b) A proceeding under this chapter is limited to interests in the property that are subject to administration and does not include other interests except to the extent the owners of other interests in the property consent to be bound by the partition, allotment, or other division.