I am not a lawyer, but if I am sued in State Civil Court, can I waive a jury trial?
Probably, but it depends on the state's law.
If you are sued in state court, you and the other parties each have a right to demand a jury trial, as long as you're not in a bankruptcy proceeding.
In the typical state court suit, a plaintiff wants a jury because he or she feels they will be more likely to award damages than a judge. Plaintiffs usually demand a jury and if required, pay the appropriate jury fee to perfect it.