Originally Posted by KDC:
Maybe you could tell them you'll start advertising and interviewing as soon as possible, and if you could get someone in before the 3 weeks is up, they won't have to pay for those days. Then she could spread the word out to everyone she knows and might even help fill the spot? Then she has an incentive, and it also makes more sense to her of why the 3 weeks was necessary in the first place? Just a thought.
I wouldn't do this unless she puts up a stink. Or you are anxious to have the child(ren) out ASAP. You've got to stand up for your business, and since she is leaving anyways, you don't have to fear her giving you notice cuz she doesn't like your rules!
Even if you start advertising, is there any chance you'd get the spot filled that fast?