A proceeding instituted under this chapter shall be filed and served
as are other cases in the superior courts of this state or in the Georgia State-wide Business Court; provided, however, that a proceeding instituted in the probate court pursuant to paragraph (1) of subsection (a) of Code Section 15-9-127 shall be filed and served in the manner provided for proceedings in the probate courts of this state in Chapter 11 of Title 53. A proceeding instituted under this chapter may be tried at any time designated by the court not earlier than 20 days after the service thereof, unless the parties consent in writing to an earlier trial. If there is an issue of fact that requires a submission to a jury, the jury may be drawn, summoned, and sworn either in regular term or specially for the pending case.