The attorney for the estate of Jerome T. Osborne Sr. is arguing that the state of Ohio is not justified in assessing the deceased Mentor developer's heirs more than $597,000 in fines because of pollution of the Chagrin River's east branch in Kirtland Hills."There are no statutes that you can't dredge Ohio rivers or that it's unlawful to engage in construction along the rivers of Ohio," Osborne Co.