Del. Code tit. 12 § 3504
When any person possessed of lands, tenements or hereditaments for a term of years upon trust is out of the jurisdiction or not amenable to the process of the Court of Chancery or it is uncertain whether the trustee last known to have possessed as aforesaid is living or dead or if any trustee or the executor of any such trustee neglects or refuses to assign such term to the person entitled to receive such assignment, for 20 days next after a proper legal instrument for making such assignment has been tendered for such person's execution by the person so entitled or such person's agent or attorney, the Court of Chancery for the county wherein such lands, tenements or hereditaments are situated may appoint a person to make such assignment to such person and in such manner as the Court directs. Any assignment so made shall be as effectual to all intents and purposes as if the same had been made by the trustee or the trustee's executor.
12 Del. C. § 3504