Thanks for the chapter!
Don't think him offering to sell her the spell for 10 mil is going to work. Doubt she has that much money to throw around and likely would've offered if did. Although if took offer to the college they might be willing to buy it off him. Although she had a reason for asking him if he this was a temporary measure as what he needed was a permanent one that could be used consistently. Although agree there won't be a shortage of stupid, idiotic, or desperate people selling themselves or their children off.
Granted the kids are being overworked but they probably, at least at the more reputable establishments, have a roof over their heads, warmth during the cold season, clothes, and fairly consistent meals if for no other reason then to avoid disgusting the paying customers. After all, let's say he buys the freedom of about 100 women and children. He's going to need some place(s) for them to live, get enough food to avoid starving, clothes so have something to wear other than what's on their backs, and preferably have a way to earn enough income to help cover costs. Worst case they'll be unable to earn income or expect him to provide everything so he'll run himself ragged just with basic maintenance costs. Hence the need for a permanent reusable method rather than a temporary quick fix. Otherwise they'll end up back where they started with no seniority or worse conditions or somewhere more black (as in black companies) just to survive.