Whats that smell?? HELP!

[Joshua Vallario]

A tenant just moved out and when I did the final walkthrough, there was a pet odor, but nothing too crazy.  I had my painter come in and paint (he is a personal friend) and I went in the next morning and the entire house smells like vomit.  #1:  Is there a product that I can have my cleaners use to rid the home of that smell?  #2: Can I charge the tenant's security account?  The smell is so bad that I am affraid that it will create an issue with the new tenant moving in If I cannot cure it.  

I know it was not my painter.  The former tenant was in there the prior night removing boxes and items that I identified.  Im thinking she might have done something?  Please help!