Still no e-mail from her giving permission to run the background check. I'm not surprised. My MIL did call some more of her references this morning. One was a personal refererence. He's known her for 45 years. He spoke very highly of her but he asked what sort of job she was applying for and when he was told "accounting" he said that he knew what he was about to reveal would cost her the job but that he couldn't lie and he said that she had served jail time for embezzlement. Said that if it was for any other sort of job he'd highly recommend her because she's a very hard worker and a nice person. She just did something very stupid. But he said that he just couldn't recommend her for a job dealing with money. MIL thanked him for his honesty.
So....she's out.
The upside to all of this is that there were two candidates that stood out for the job. She was one and there was one other lady. The other lady had a job so waiting for me to get my clearance wasn't an issue for her at all. But it was for the one they chose in the end because she didn't have a job (probably because no one will hire her with that sort of record, kwim?). MIL has now called the one lady and has offered the position to her if all her references check out. And that lady has agreed to a background check.

So......now I'm not feeling extremely rushed and like I am holding up the show anymore.