G.A.S. v. S.I.S.
407 A.2d 253 (1978)
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Rule of Law:
A separation agreement is voidable for undue influence where a party's mental weakness, short of contractual incapacity, is coupled with lack of independent legal counsel, an unfair transaction, and influence exerted by the other party who is in a dominant position within a confidential relationship.
Facts:
- G. A. S. had a history of recurring mental illness, diagnosed as schizophrenia and manic-depression, requiring several hospitalizations since 1970.
- On December 23, 1974, G. A. S. suffered a mental breakdown and was committed to the Delaware State Hospital by police after his wife, S. I. S., called them.
- While G. A. S. was hospitalized, S. I. S. initiated divorce proceedings.
- During this period, G. A. S. was dependent on S. I. S. for transportation, money, and permission to leave the hospital, and she managed his paycheck.
- On February 20, 1975, while still a patient in the hospital's night program and on medication known to adversely affect reasoning, G. A. S. went to the office of S. I. S.'s attorney and signed a separation agreement.
- G. A. S. was not represented by his own counsel when he signed the agreement.
- G. A. S. testified that he signed the agreement, without reading it, as an act of good faith in the hope of reconciling the marriage.
- The terms of the agreement were severely unfavorable to G. A. S., obligating him to pay approximately 70% of his net income in support, granting S. I. S. sole ownership of a beach property, and including a clause where he could forfeit his interest in the marital home.
Procedural Posture:
- S. I. S. (respondent) filed for divorce from G. A. S. (petitioner) in the Superior Court of Delaware.
- G. A. S. was personally served with the divorce summons while he was a committed patient at the Delaware State Hospital.
- Subsequently, G. A. S. filed a petition in the Family Court of Delaware to rescind the separation agreement he and S. I. S. had executed on February 20, 1975.
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Issue:
Is a separation agreement voidable on the grounds of undue influence where one party, suffering from mental weakness and under the effect of medication, signs an objectively unfair agreement prepared by his spouse's attorney without the benefit of independent counsel, while being dependent on and seeking reconciliation with that spouse?
Opinions:
Majority - James, J.
Yes. A separation agreement is voidable when procured by undue influence. While petitioner G. A. S. may not have lacked contractual capacity entirely, his mental weakness is a critical factor that makes the agreement voidable when combined with other circumstances. Psychiatric testimony established that G. A. S.'s mental state and the medication he was taking would have prevented him from fully comprehending the nature and implications of the agreement he signed. Even if this weakness did not rise to the level of legal incapacity, it made him susceptible to undue influence. Given the confidential relationship between husband and wife, and S. I. S.'s dominance due to G. A. S.'s illness and dependency, a presumption of undue influence arises because the agreement disproportionately benefited her. The burden then shifted to S. I. S. to prove the transaction was fair, a burden she failed to meet. The court found the agreement's terms to be substantively unfair and 'severely overreaching,' demonstrating the effect of the undue influence. The combination of G. A. S.’s susceptibility, S. I. S.'s opportunity and disposition to influence, the lack of independent counsel, and the unfair outcome warrants the rescission of the agreement.
Analysis:
This case establishes that a contract can be set aside for undue influence even if the contracting party does not meet the high standard for legal incapacity. It highlights the judiciary's willingness to look beyond a party's bare cognitive ability to sign a document and examine the holistic context of the transaction, especially in domestic relations. The court's focus on the combination of factors—mental weakness, a confidential relationship, lack of independent counsel, and substantive unfairness—creates a strong protective doctrine for vulnerable parties. This decision reinforces the principle that a party in a fiduciary or confidential relationship cannot exploit the other's weakness to secure an unfair advantage, thereby placing a heavy burden of proving fairness on the dominant party in such transactions.

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