I'm a full-time professional who has been dealing with projects for clients' suitability. My first priority is the client's operational time when they are on pick hour. During the time of project running, I strongly believe and prefer the client should be communicative through the media. I'm always in the belief of honesty, hard work, and punctuality. I definitely refer the dealing should be taken place after a clear deposition or contract.
In terms of payment, I'd like to demand an escrow service so that both I and my client feel risk-free.