End point of the Leader. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
Syntax
Remarks
 The End point is the leader's end that points to the object being annotated. 
 Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | When setting this property: A valid point must not be father then 10 miles (approx. 16 km) from the origin. -or- When setting this property: The leader's End point may not be placed at the current position of the Anchor or Elbow point. | 
| Autodesk.Revit.Exceptions ArgumentNullException | When setting this property: A non-optional argument was NULL | 
| Autodesk.Revit.Exceptions InvalidOperationException | When setting this property: The leader is not currently owned by a valid element. A probable reason for that could be if the element has been independently deleted, or the leader has never been properly initialized. |