Final answer:
The failure of a real estate broker to place deposit money in the custody of a principal broker is a violation of Oregon License Law, which requires strict compliance with regulations regarding the handling of client funds.
Step-by-step explanation:
The failure on the part of the real estate broker to place deposit money in the custody of his principal broker is: a) A violation of Oregon License Law. This is because in the real estate industry, brokers are required to adhere to strict regulations regarding the handling of client funds. The handling of such funds is a matter of legal compliance and professional responsibility. When a broker receives money that belongs to others in the course of a real estate transaction, they must ensure that it is handled properly, often by placing it into a trust or escrow account as dictated by state laws.
In Oregon, specifically, the failure to comply with these regulations is considered a violation of the Oregon License Law, which governs the conduct of real estate professionals within the state. It is imperative that all brokers comply with these regulations to maintain the integrity of the real estate profession and to protect the interests of clients.