Answer:
No the suit will not succeed as their is no agreement
Step-by-step explanation:
The contract was conditional contract. As the condition explicitly said that, the right to agree on terms and conditions is explicitly attorney's right. When the attorney has not agreed on the terms and conditions of Harbor Park, the company hasn't formed any contract. Furthermore, there is no limitation on Grondas to consider other available options and attorney is also not obliged to agree to Harbor's offer.
Thus the suit that says Grondas has breached the contract is meaningless and will not succeed in the court.