1/3 of the current tenant wants to renew with new roommates

[Sean Pedeflous]

In one of my duplex units, one girl wants to stay and renew her lease but with two new people as the current other two are moving out.

She had 2 people willing, but one of them was a smoker so I had to say no. She said she will look for someone else. I'm worried if she can't find someone she'll bail out right be for her lease is up and I'll be stuck scrambling for tenants as opposed to looking for them in now.

Has anyone experienced this and have any suggestions? This is all verbal as well. I don't think she wants to renew a lease with out the other roommates set. Not sure how to go about it.