O.C.G.A. § 22-3-3 (2019)

There need be but one condemnation proceeding against the same railroad company, which proceeding may be conducted in any county where service can be made upon the company as provided in Code Section 22-3-2. However, if the railroad company has a main or principal office located in this state, the proceeding shall be conducted in the county in which the main or principal office is located. The assessors shall make their findings of the damages to which the railroad company may be entitled by reason of the construction, maintenance, and operation of the telegraph or telephone lines in the manner set out in the notice.