What should I do with the smoker upstairs?

[Marc Lavoie]

Hi BP,

I just bought a Duplex and the seller will be my tenant. She has been living in this spot since 1998 but didn't want to manage it anymore. During the sale, she agreed to a lease.

The thing is she's a smoker and I'll ask the people downstairs not to smoke inside.

The lease agreement as not yet been signed.

Current state of mind : I'll be asking her not to smoke inside.

Have you ever lived a similar situation? Any advice?