Tenant requests before closing

[Layton Gilbraith]

I'm closing on my first deal in a week or so. Yahoo!

It's a triplex which already has 2 units tenanted, and we are inheriting those tenants. 

After introducing myself as the soon to be new landlord the tenant mentioned the seller has never met their contractual obligation of installing 2 AC units. One is installed but just crapped out today and the other is in the unit but not installed. What recourse if any do I have with the seller to get those repairs done before closing?