Answer:
1. There is no contract between the two parties as the negotiation broke in the middle and no offer and acceptance were there during the entire process.
2. The principle of restitution of unjust enrichment can be used by the plaintiff in order to recover the amount that was invested by the plaintiff. As per this principle, the arrangement made for the proposed contract that broke during the negotiation, the other party has to pay the amount spent in the development of the infrastructure required in the contract.