Tenant smoked out my apartment How to get rid of the stink

[Christopher Stobbart]

Of course my great tenant and friend who is moving this month accidently left the oven on when she left one day last week and smoked my whole house out. Really bad when I got there the place was pitch black I could barely see to shut it down. She has offered to pay for new oven and the cleaning . I have a tenant ready to go on the 1st  but the place stinks!!!! Any  advice or known tried & true methods to remove odor ? Luckily no rugs . Place is empty so I just need to clean and deoderize

Please help if you can 

Thanks 

Chris