welcome to my world.
now imagine doing this on a NON GRID style surveying setup. Where you live, pretty much everything is on the land grid system.
Massachusetts does not HAVE one, Mass has actually 2 styles of land recording, one registered land court where the plans- HAVE to be right by law, and one recorded land where it is similar to everywhere else, just nothing is "grid".
So you have one plan with north going "this way" then one plan north it rotated 45 degrees. one plan with bearings & distances, one plan with angles and distances one plan with distances only.
And a piece of land that if you come - facing the land parcel from the street
- from the RIGHT with your control survey- nice tight control(all markers bounds buildings to the RIGHT of the parcel) that is checking to 0.01'.
The neighbor on the right's building is 0.83' onto the land parcel you are doing the alta for-and you have plans showing that....and the building on the left side is 0.83' from the property line(and the same plans show this)
BUT if you come from the LEFT of the parcel- with - again nice tight control survey(all markers bounds buildings to the LEFT of the parcel are checking to 0.01') that same neighbors building is 0.00' to the property line AND the building on the other side of the parcel(left side) is also 0.00' to the property line(and you have plans showing that side of the block showing the building 0.00' to the street lines and property lines). common sense would say,,, use the left side control -your parcel falls EXACTLY between the two buildings with zero encroachments.
but 3 of the plans of record use the RIGHT side...and 2 plans of record use the LEFT side...now try explaining that to the lawyer for the neighbor that the plan they had done is wrong, and the LAWSUIT that was adjudicated and settled was based on..plans that ultimately were incorrect...
Physically measuring the block intersection to block intersection(and the adjacent ones left and right to "check"- each block is SUPPOSED to be 500' long), the block was constructed 0.83' too wide (500.83') the neighboring blocks were 500'
we held the left side btw...