Rudey, good point, but there are rights on the encrouchee as opposed, to the encroucher.
Basically, do as a Lawyer says, get a Lawyer of Local Semi Status.
Now, if a Legal Fleagle wont take the case or wants to charge you a damn arm and leg, let said Tree do its work, then file for damages and kick their asses! Take ist as far as the State Supreme Court. Appeal, appeal, plea and just say Chain Friggen Saw muffled late at night.
Fences were a made to keep cows dogs and kids in yards.
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