Respect your time and worth. If you say yes to something, then you're saying no to something else. Don't forget that a buyer or prelist consultation is not just about convincing them you're the right agent for them. You're also interviewing them to make sure they're the right client for you. Do you want to work with a seller who has unrealistic expectations on the price of their home? Do you want to work with a buyer who is looking in an area very far from where you live? Is that person going to be a client that will listen to your advice or be difficult? If you're going to commit your time then you need a commitment in return. Get all up in their business and ask those difficult questions so you know exactly what their goals are and what they expect.