Final answer:
While oral disclosure of agency relationships may suffice in informal situations, written disclosure is typically required for formal contracts and legal compliance. The written form prevents misunderstandings, conflicts of interest, and serves as a necessary record.
Step-by-step explanation:
Generally speaking, written disclosure of agency relationships is considered the standard, especially when it comes to real estate transactions and other areas where formal contracts are typical. In some instances, oral disclosure might be considered sufficient, usually in less formal or smaller-scale situations. However, depending on the jurisdiction and the specific circumstances, the law may require a written disclosure to formally establish the agency relationship and to fulfill any record-keeping requirements. For instance, in matters of real estate, written disclosure helps prevent misunderstandings and conflicts of interest, and it provides a record that may be necessary for legal compliance or in the case of disputes. Therefore, while oral disclosure can sometimes act as a substitute for written disclosure in the short term, it's often prudent to follow up any oral agreements with written confirmation to avoid potential legal issues.