These “side” issues include such matters as resolving substandard access to the public road and meeting bulk zoning regulations such as lot width and area. A Boundary Line Adjustment, then, is an Administrative action by the city or county planning authority. In contrast, a Boundary Line Agreement is a judicial action.
You and your neighbour can create a 'boundary agreement' to record: the boundary between 2 properties. who's responsible for maintaining a hedge, wall, tree or fence between 2 properties.
Under such an agreement, the parties acknowledge the true boundary line between the properties, and the encroaching owner releases any claim to the strip of land encroached upon. In return, the “encroached upon” owner allows the encroachment to continue for so long as he/she is not adversely affected.
Boundary lines help determine the extent of a property and its legal ownership. Specifically, these lines define a property's physical limits and help prevent conflicts between neighboring property owners.
The boundary line is where the property ends. An easement is aright to cross over your property. Most easements are for utilities or access to a property. Both are pretty much written in stone and beyond your ability to control.