Legal Question in Personal Injury in Missouri

Re: If I sign a contract saying will not be held liable, can I still sue?

You can sue; the question is will you recover. You probably lose your claim as the parent, but the child's claim likely cannot be compromised in advance. That is probably against public policy. But, if you have any doubts about the form, do not sign it and find another baby sitter. Anyone who is thinking "I'm not liable" based on a form is probably not taking good care of your kids, and why should they: they aren't liable if they don't.