Not very much. Just issue filings and have meetings to retain the company's corporate status. They may have unique contractual obligations that may result in a

Not very much. Just issue filings and have meetings to retain the company's corporate status. They may have unique contractual obligations that may result in a lawsuit should they not be fulfilled but those aren't necessarily "legal obligations" since it's subject to scrutiny (contracts aren't laws). edit: and in terms of "fiduciary obligation", maximizing profitability isn't one of them.