It appears Oher was never legally adopted, it was just a conservatorship and the Tuohy family misled Oher when he was 18 to believe it was basically the same thing. A key difference is that Oher himself - since he wasn't legally adopted - has no rights or financial dividends from "The Blind Side" - but the entire Tuohy family does.
My initial reaction to this (before reading the actual circumstances) was "oh, boy - here we go with another Kaepernick"; but after reading up a little, this actually could be perceived as a form of modern-day slavery.
Maybe I missed it, but I didn't see anywhere where it says the Tuohy family willingly cut Oher into the profits of their books, movies and foundations - all made off Oher's back. Implications are that they did not cut him in at all and if that's truly the case, that's pretty vile and shady by the Tuohy's. If they actually did cut Oher in and he's just salty because he wants more, well then it's pretty shitty that he actually is pulling a Kaepernick by publicly throwing his family under the bus.