You would be perfectly willing to inflict some non-consensual play on Linda's daughter, but you don't want to have trouble with the law over it. While deciding what to do about that, you slip into her profile and have some fun tweaking her physically, really doing just about everything you did to her mother except the piercings and tats.
You do decide to give her something special in lieu of the decorations, and choose butt-length, absolutely gorgeous flaxen hair, blue eyes and a 37 inch bust. Dale is going to love training the new sub, and you're looking forward to watching him enjoy her.
But you have to figure out what to do with her mind. You could just slide her submissiveness up to the same level as her mother, of course. But, that would require you to assign her ownership now, and you are pretty sure it would make her more compliant than you want. Exploring into the 'submissiveness' value more, you find it controls the active degree of submission, and there is a related control for 'submissiveness potential'. You discover that the controls on heterosexuality and lesbianism work somewhat the same way.
You push the potentials for submissiveness, hetero and lesbian all to full for both Samantha and her mother, then give Samantha current levels that are more borderline. It takes a little tuning, but once you are done, the girl is right where you want her for training, reluctant but ultimately unable to stop herself.
Of course, at her age, even if she is completely consensual, her father could interfere. He hasn't been much of a dad, and he lives in another city, and Linda has always suffered from him being late on payments anyway, so you decide Dale is going to help Linda financially once Samantha accepts her slavery, and the deadbeat dad is going to just go away.
Even if you now see Linda more as plaything than as friend, you still love her and hate how he has treated her. He deserves a little retribution. Could you make him female and pregnant, you wonder?
It turns out to be more effort than you want to put into the guy at the moment. You just make sure he's decided to finally write off Linda and Samantha and ignore the fact that they exist, which is a very short journey from his current mindset. You'll make a special plan for him later. He's going to learn what being a woman suffering at the hands of jerk-ass men is like.
And your kids are an issue of course. They'll be getting home at some point… but you find ways to make them tolerant of your hobby.
Returning to the subject of Samantha, you realize you need to decide how you will start with her.