Partition actions in Pennsylvania are legal proceedings used when co-owners of property cannot agree on how to manage or dispose of a property. A Partition is a type of lawsuit where a judge, or a court-appointed master will hear evidence and determine whether the property is to be divided or sold.A partition action enables you to force the sale of property when coowners are refusing to sell. Summary; Components; Credit; How to Attend. The first step in a partition action is filing a complaint with the court. If the Court issues an order directing the partition of the property, the parties then move on to Phase 2 of the partition process. Partition Lawsuit Definition: What is a Partition Action? Rule 1557 - Order Directing Partition (a) A party seeking an order directing partition because of a default shall proceed under Pa.R.C.P. No.