blah blah blah x50 == well, basically, the limits on what can be done to Carissa are going to be in a sealed section laid down on Keltham's behalf by Paracountess Isidre Thrune (no sorry he can't remember all those middle names who does that hopefully this isn't too awful an error).
And also as Keltham's worried about Carissa's heart being stolen away from him - not least by her possible delusion that Carissa's own person could possibly be taken away from him, even by the Queen of Cheliax, if Keltham himself had decided to get serious about keeping her - he now, as indeed the greater part of his compensation for this rental, demands that that before he hands over Carissa, the Queen sign such agreements as will duly incentivize her to attempt no such thing and ensure a correct outcome for her if she does. If by untampered truthspell it is proven that Carissa has come to love the Queen and to love her more than she loves Keltham -
- then Keltham has the right to walk out on all this shit not withstanding other bargains to be signed later, and haul Carissa's chained-up ass away with him, if he chooses.