I have a question about Oak Trees on Real Estate...?

And you actually believed that idiot?! Oak wont harm the house for at least a hundred or more years unless the roots are within a few feet of the foundation. Oak are beautiful stately trees and your parents are right to want them. leave the trees, or just dont buy the house. Some one else will buy it and treat them the way they should be treated, and they will get decades of great shade from them