Buyers - What to Consider When Writing an Offer

Recently I was writing an offer for a property and the buyer had a set of pre written conditions to the contract. The buyer had clearly been doing his research and had drafted a number of conditions that without a doubt protected the buyer a great deal. Unfortunately the conditions meant that if the seller accepted, the buyer could walk out of the contract at any stage without providing any notice, yet the seller could not continue to market the property. Needless to say, that there was no deal, which was a shame for both parties.