Within the districts established by this Ordinance or amendments that may be adopted, there exist lots, structures, uses of land and characteristics of use that were lawful before this Ordinance or amendments thereto were passed, but that would be prohibited, regulated or restricted under terms of this Ordinance or future amendments. Regulations for the continuance, maintenance, repair, restoring, moving and discontinuance of such nonconforming lots, structures, land and uses are established for the following purposes:
A. To permit these nonconformities to continue, but to minimize any adverse effect on the adjoining properties and development;
B. To regulate their maintenance and repair;
C. To restrict their rebuilding if substantially destroyed;
D. To require their permanent discontinuance if not operated for certain periods of time; and
E. To require conformity if they are discontinued, to bring about eventual conformity in accordance with the objectives of the Comprehensive Plan and Zoning Ordinance of the Town.