James Stewart and John S. Howell, Respondents v. William A. Ketaltas, Appellant

Summary

The New York Court of Appeals affirmed the judgment awarding the plaintiffs the final installment under their building contract and additional compensation for extra work. The court held that the defendant's hindrances excused the plaintiffs' delayed performance, that any architect's certificate satisfying the contract's form requirement was sufficient, and that a subsequent agreement to pay for sheath piling was enforceable.