This sounds awesome.

I used to have the awful job of auditing executive expense reports at a fortune 10 company. One major problem is that employees submit expenses, and managers approve them, but they don't comply with IRS guidelines for deductibility. For instance, an employee just submits a expense for a $300 dinner, and it is approved by his manager.

One area where you could really stand out from the competition is guiding people to do the right thing, e.g. list the number of people that attended the dinner and a few names and titles of the attendees.