Renters still in house at closing.

[Calvin Fluker]

I am set to close in a week on this deal.The seller has a month to month lease with tenants and they are planning to move out. Seller says they may need a few days past closing to be out. I do not believe that seller has given official notice to tenants. My buyer has no plans on renting but may be open if only a little time is needed. How should I structure closing to insure my buyers interests are met?