Alvarez v. Castellon
55 A.3d 352
Del.2012Background
- Automobile collision: Castellón rear-ended Rodriguez on April 15, 2010.
- Rodriguez signed a release for $1,500 on April 20, 2010 after informing Nationwide of ongoing back/neck pain.
- July 2010: specialist diagnosed a herniated thoracic disk; ongoing pain persisted.
- February 18, 2011: Rodriguez filed a personal injury action against Castellón.
- Superior Court granted summary judgment for Castellón on May 8, 2012, holding no mutual mistake; release valid.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Mutual mistake to set aside release | Rodriguez: mutual mistake about injuries existed | Castellón: release is clear; no mutual mistake | No mutual mistake; release remains valid |
| Nature of injuries and relation to original trauma | Injuries were materially different from initial injuries | Injuries related to original trauma, not new | Injuries related to original accident; not a new injury for mutual mistake |
| Effect of release language and standard of review | Release ambiguous or misinterpreted due to injury extent | Unambiguous release governs; de novo review | Release language controls; no mutual mistake; judgment affirmed |
Key Cases Cited
- Tatman v. Philadelphia, Baltimore & Washington R.R. Co., 85 A. 716 (Del.Ch.1913) (mutual mistake must concern past/present material facts, not future effects)
- Reason v. Lewis, 260 A.2d 708 (Del.1969) (mutuality exists where neither party is aware of injury)
- LaPoint v. AmerisourceBergen Corp., 970 A.2d 185 (Del.2009) (Delaware upholds contractually valid releases unless mutual mistake)
- Deuley v. DynCorp Int’l, Inc., 8 A.3d 1156 (Del.2010) (mutual mistake analysis in release context)