In Cooper, Executor v. Omohundro, the Supreme Court of the United States was asked to decide whether a state court had the authority to order a sale of land in order to pay a debt. The case involved a dispute between the executor of a deceased man's estate and the man's widow. The executor had been appointed by the state court to manage the estate and had been ordered to sell the land in order to pay the deceased man's debts. The widow argued that the state court did not have the authority to order the sale of the land, as it was held in joint tenancy with her husband. The Supreme Court held that the state court did have the authority to order the sale of the land. The Court reasoned that the joint tenancy was a form of ownership that was subject to the laws of the state, and that the state court had the authority to order the sale of the land in order to pay the deceased man's debts. The Court also noted that the widow had not objected to the sale of the land when it was first ordered by the state court, and that she had not taken any steps to protect her interest in the land. The Court's decision in Cooper, Executor v. Omohundro established that state courts have the authority to order the sale of land in order to pay a debt, even when the land is held in joint tenancy. This decision has been cited in numerous subsequent cases involving the sale of land to pay a debt.

In Cooper, Executor v. Omohundro, the Supreme Court was asked to decide whether a state court could enforce an agreement between two parties that had been made in another state. The majority opinion held that the contract was valid and enforceable under the Full Faith and Credit Clause of the Constitution. However, Justice Field dissented from this decision on several grounds. He argued that since there were no witnesses present when the contract was entered into or any other evidence of its existence besides one party's testimony, it should not be enforced by a court as it lacked sufficient proof of its validity. Furthermore, he noted that even if such proof existed in some form, enforcing contracts across state lines would lead to confusion and uncertainty due to differences in laws between states which could make enforcement difficult or impossible at times. Finally, he concluded by stating his belief that allowing courts to enforce agreements made outside their jurisdiction would undermine public policy as well as interfere with each individual state’s right to regulate matters within their own borders without interference from other states or federal government entities