I feel the "matter to" is what's generally known as a 'weasel clause'. You could effectively set just about anything you want there...a lot of individuals will contain one thing like "matter to favorable financing" or "topic to business companion's approval" to present on their own a straightforward back-doorway out http://molbiol.ru/forums/index.php?showtopic=928457&st=950&p=6086991#entry6086991