Communication is especially important for buyers house-hunting from afar. Chan has clients in London or Asia who communicate with him via Gchat or FaceTime. He’ll also record tours of potential properties and upload the videos to YouTube with a private link.

Also ask who will be your main point of contact, because some busy real estate agents use a team of assistants or sub-agents to handle day-to-day tasks, and you may not have direct access to the agent you choose. "Maybe some people don't care, but I think that's an important question to ask," Chan says.

These questions can help you get a sense of the agent’s process and personality, but the right decision may depend on your instinctive reaction. "Follow your intuition," Chan says. "If they feel too slick, it's not a good sign. It’s a good sign when you find an agent who can tell it like it is."