Two different issues:1) Lateness in returning documents--if you have actually suffered some cost, loss, damage, etc. due to this, you could sue for compensation for your losses, inflicted due to broker negligence. If you have not suffered any loss, it's unclear what you would sue for; the American legal system only compensates, as a general matter, for actual losses. You could seek a legal order  from a court forcing the broker to finish her work and return the documents. You can't sue for "inconvenience and stress," unfortunately.2) If the seller agreed to fix the roof but did not, then you would sue the seller, not the broker--it would be the seller who violated  the contract/agreement. If the broker lied or misrepresented to you that the seller had agreed to fix the roof when the seller did not, then you might have a cause  of action, for probably the cost of the roof repairs, against the broker.