An aggrieved party can be any person whose financial, personal, or property rights or interests are adversely affected by an act of another or an order, judgment or statute. An aggrieved party is entitled to challenge the adverse decisions. "Aggrieved party" defined in Rev. Code Wash. (ARCW) § 4.28.328 means (i) a person against whom the claimant asserted the cause of action in which the lis pendens was filed, but does not include parties fictitiously named in the pleading; or (ii) a person having an interest or a right to acquire an interest in the real property against which the lis pendens was filed, provided that the claimant had actual or constructive knowledge of such interest or right when the lis pendens was filed.
In the bankruptcy context aggrieved parties are defined as “those parties having a direct and substantial interest in the question being appealed. Bankruptcy's person aggrieved doctrine restricts standing more than U.S. Const. art. III standing, as it allows a person to appeal only when they are "directly and adversely affected pecuniarily by the order." Parties must have a financial stake in the order being appealed in order to have appellate standing. A financial stake requires a diminishment of property, increase in burdens, or an impairment of rights.” In re Gulf States Steel, 285 B.R. 739 (Bankr. N.D. Ala. 2002)