[Graymatter]

He stands to benefit.

This is a major factor in the dispute, and he has tried to remove it by saying the money's gone, there's no insurance, etc. But even assuming that is true (which we don't), Michael Schiavo would face a serious financial burden if Terri survives. I think that is part of his motivation.

[Aliska]

Michael Schiavo would face a serious financial burden if Terri survives.

Yes, and he may have an inheritance from his parents' deaths. Even if he were to divorce Terry, a court would look at that and possibly order him to pay for her maintenance. My opinion is that is the real reason he wants out and sees her death as the only way out.