Information that comes to light on May 27th provides you with the bargaining chip you've been looking for. This could relate to the other party's finances, a questionable act, or some other detail that they don't want to come out. Indeed hinting that you know that there's more going on than meets the eye is all you need to do to get this person to sweeten the terms or fatten an offer. It's amazing how cooperative people become when they think you've got something on them. It's also amazing how effective the power of suggestion can be if you know how to use it.