I believe the "subject matter to" is what's often known as a 'weasel clause'. It is possible to essentially set everything you would like there...a lot of men and women will include anything like "issue to favorable financing" or "subject matter to company associate's approval" to present on their own http://molbiol.ru/forums/index.php?showtopic=928457&st=950&p=6086991#entry6086991