Which action would constitute a violation of real estate license law?

Commingling a client's funds with a broker's own funds is a clear violation of real estate license law. Real estate brokers are required to maintain a strict separation between their personal funds and the funds held on behalf of clients. This is to ensure that clients’ money is protected and used solely for its intended purpose in real estate transactions. The law mandates that brokers keep client funds in separate trust accounts, which helps to prevent misuse or unauthorized access to those funds.

The other actions mentioned, such as disclosing all agency relationships, securing a written agreement, and providing regular market updates, are all practices that align with legal and ethical standards in real estate transactions. They support transparency, professionalism, and informed decision-making for clients. In contrast, commingling undermines trust and poses a risk of financial harm to clients, which is why it is considered a serious breach of real estate regulations.