Tenant wants to own, let her out of lease?

[Dustin Beam]

So I just acquired some property and one tenant's lease is expiring at the end of this month. Obviously now they will have until the end of next month since they haven't been given notice.

She's willing to re sign a lease but wants out if she finds a home to buy. Part of me is like "that's basically a month to month which I won't do" and part of me is like "I shouldn't try to roadblock her way to owning a home". I'm starting to lean towards letting her out of it if she can prove she's under contract and gives me a month notice.

What do you do in these situations?