Hir kommt die Antwort für diese Urkunde:

"To get the Title Deed you will need to go to Sir Patrick’s Mansion. When you
get there search the grounds outside the mansion for a Portal Stone. It is in
the western half of the estate near the fence and is partially obscured by a
hedge. When you find on it click on it to be transported inside the mansion.

You are teleported to a room with five exits: two to the north, two to the
south, and one to the west. The room to the west has the Deed you want, but
to get to it you first need to unlock the door. To do that you need to go
into the northwest room and flip the lever there, then go into the southeast
room and flip the lever there, and finally flip the lever in the center room
to open the door to the west. Take the Deed and return to Sir Dante."