It’s neither contradictory nor uncommon to lease space to a tenant in “as-is” condition while also promising to maintain some or all of that space, such as the roof or parking lot, until the transfer is complete. You just need to be careful about how you word the obligation.

Not stating the specifics is likely to lead to two results, both of them negative.

Not stating the specifics is likely to lead to two results, both of them negative.