I believe the "matter to" is what's often known as a 'weasel clause'. You'll be able to fundamentally set anything at all you would like there...lots of people will incorporate a little something like "topic to favorable financing" or "subject matter to enterprise associate's approval" to offer by themselves an http://molbiol.ru/forums/index.php?showtopic=928457&st=950&p=6086991#entry6086991