There are SOOOO many paths this could take it would be impossible to list them all.
1) the prosecutor could choose not to do anything.
2) They could be charged with a number of different things. My parents were victims of something VERY similar, and the woman was found guilty of a variety of charges including Theft, tampering with records, etc. The felony classes ranged from 3rd to 5th degree felony. The whole process took nearly two years to the day from start to finish, but could have gone longer.
3) She could be offered a deal.
4) She could go to trial and be found not guilty.
You probably aren't going to be able to make this go faster. Just make sure that you aren't causing any hold ups. If they ask you for something, give it to them promptly, etc.

