A partition action is a lawsuit between co-owners of real property who cant agree as to any aspect of the management of the property. Partition of real property is defined as the severance of undivided and coexisting interests in real property.The first step in beginning the property partition process is to determine ownership. Partition lawsuits require a common title or interest in the underlying property rather than two competing claims for ownership. Partition refers to the act of dividing the interest in the property according to each owner's share. You may request to group or split folios with the Property Appraiser's Office, if the request is based on a valid instrument recorded in the public records.