I have a job where a one family dwelling with a good 100 amp service is exsisting feed from a overhead drop.The building is being converted to a condex with 2 units and the 2nd unit is going to be a complete new addition to the exsisting one family to make the 2 units.I don't want to disturb the exsisting 100 amp service.I don't think the poco will let me add a new service to the new addition on the other side of the building with the exsisting 100amp service staying on the opposite side which would create 2 service drops to the same building.So I was going to just add another 100amp service with the main in the meter can right beside the exsisting service and run a SER feeder through the exsisting unit to a sub panel in the new unit. Would this be a violation of 230.72 that says the disconnects shall be grouped?