At the risk of short-circuiting your wiring, what's the "consideration" for this contract. The other person agreed to something, what did you agree to? A contract without mutual "consideration" is voidable.
In other words, I could sign 9 yards of ---- promising to do (or not do) this, that, and the other thing and, if you have given nothing in return, walk out the door, toss the paper in the trash and proceed to do (or not do) this, that, and the other thing with impunity.
I suspect that your written agreement would be pretty useless in a court of law given your vague explanation of the circumstances and agreement.