The Petition to Terminate filed by Oher in probate court is pretty suspect in some ways. For example, it says "During the summer after his junior year [2004] at Briarcrest, Michael also occasionally stayed with Sean and Leigh Anne Tuohy...The Tuohys, who took no legal action in Juvenile Court to assume legal custody of Michael, a ward of the state, began inviting him to their large, beautiful home more and more often during that summer. Mrs. Tuohy began taking Michael on shopping trips, buying him clothes."

Then "In July of 2004, after Michael became an adult, but still enrolled as a student at Briarcrest and just before his senior year, the Tuohys invited Michael to come and live with them. At no time prior to this invitation during Michael's minority did the Tuohys take any legal action to assume custody of Michael from OHS through appropriate channels, nor did they seek to become Michael's guardian while he was a minor."
Oher was born May 28, 1986.

Assuming the above is true, if the Tuohys had little or no interaction with Oher prior to May 2004 (as depicted in the petition), they wouldn't have even been in the position to take "legal action in Juvenile Court to assume legal custody" prior to him turning 18. This is stated at least 3 times, but doesn't make sense.

So, you have an 18 year old kid with extremely limited education or life knowledge, and skyrocketing interest as a college football prospect. He's legally a ward of the state with extremely limited or no parental supervision, and no legal guardian. Who was going to advise him as to the inevitable mountain of applications, agreements, contracts, etc., coming in his near future? If he got injured, who was to make medical decisions for his care and well being? The answer to both is: No One.

Another oddity, apparently "the Petition indicated that "It is [Michael's) desire that the Petitioners be recognized as his legal guardians at least until he reaches the age of 25 or until terminated by order of this court prior to that time." However, "Despite that prayer, the Court appointed the Tuohys as Conservators to serve in that capacity until further orders of the Court terminating the conservatorship."
Did the Tuohy's think the conservatorship had ended when he turned 25? Was the Court's order omitting that language erroneous in not following the petition in this regard?

Now, what is vague, but doesn't bode well against the Tuohys if proven, is the failure to make payments to Oher from the Movie and other uses of his name and likeness, and moreso, failure to make proper accounting of funds received under the conservatorship.