I would not recommend scheduling an overnight with someone you’ve never before met in person. I did it twice (with very well-known pros) but it didn’t “click” in the long-run. Dinner and playing afterward we’re great, but sleeping and morning were not. Also, an overnight might imply fantasies of how it would be to have a relationship on the client’s part, and, let’s face it, hiring a guy is not the same as having a relationship. My two cents worth.