When making a deal, don't agree to stop all negotiations with other parties. One of the very most important properties of a deal is competition. A sense of co

When making a deal, don't agree to stop all negotiations with other parties. One of the very most important properties of a deal is competition. A sense of competition ensures deals move along in a timely manner and push the value of the deal and keep everyone's options open. If a company ever wants you to stop negotiating with all other parties, say "YES, when you've put the sale price in our bank account, until then, we are dealing with other parties too". And if they refuse to deal because of this point, then it's not a real deal anyway so walk away and save yourself the price that this company paid, which is total.