Adverse possession is not very common in California, but it can still occur, particularly in cases where property is left unattended or boundaries are unclear. Adverse possession allows a person to legally claim ownership of land if they meet specific conditions, including continuous and exclusive occupation for at least five years and payment of property taxes.

Partition actions are a legal remedy used when co-owners of a property cannot agree on its disposition. This lawsuit allows one co-owner to force the division or sale of the property, ensuring all parties' interests are fairly considered. Common in California, partition actions help resolve real estate conflicts through a court trial where a judge determines each party's interest and the best method of partition.