legal research, bad faith, real estate

My situation can be divided into 2 phases. Phase 1, I have a lease on a commercial building with a first right of refusal (FROR) to purchase a building. The Seller found a buyer and didn't go through proper procedures (bad faith) to allow me to activate my FROR. We had to go through mediation to get him to acknowledge our right and we settled and Seller agreed to give us our FROR. Phase 2 - while going through the 30 day escrow process, Seller did his best to ignore his duties (bad faith) under the contract in order to try to cancel the sale. Question: 1) can I sue for bad faith even if I close escrow? Can I active my claims in phase 1 even if we "settled" because of the continued bad faith? I need case law as close to my case as possible.