In the case of William H. Belcher and Charles Belcher v. William A. Linn, the Supreme Court was asked to decide whether a contract between two parties is valid if it does not contain all of its essential terms in writing or if any part of those terms are left open for future agreement by both parties. The plaintiffs argued that their oral agreement with the defendant was binding because they had partially performed on their side and expected him to do so as well, while the defendant claimed that no enforceable contract existed since some material points were still unresolved when he refused to perform his obligations under it. After considering both sides’ arguments, the court ruled in favor of the defendants, finding that an incomplete written or verbal agreement cannot be enforced unless all essential elements have been agreed upon by both parties beforehand and none remain open for further negotiation at a later date.

In the dissenting opinion of William H. Belcher and Charles Belcher v. William A. Linn, Justice Nelson argued that the Court should not have granted a writ of error in this case because it was based on an erroneous interpretation of state law by the Circuit Court for Maryland. He noted that under Maryland law, if a contract is made with consideration then it cannot be voided due to any mistake or misunderstanding between parties unless fraud or misrepresentation can be proven; however, he found no evidence of either in this case as both parties had agreed to all terms before signing their agreement and thus there was no basis for voiding the contract according to Maryland law. Furthermore, Justice Nelson stated that even if one party had been mistaken about certain facts related to their agreement at the time they signed it, such mistakes do not invalidate contracts under state laws so long as those mistakes were not caused by fraud or misrepresentation from another party involved in said contract. Therefore, he concluded that since there was no proof of fraud or misrepresentation present here and since both sides had agreed upon all terms prior to signing their agreement then there could be no grounds for granting a writ of error in this case according to established legal precedent set forth by Maryland's courts