What is the rough area of that pond?
I ask because we can also start to think about stocking numbers.
Like rmedgar said, I would also get fatheads in there immediately, and some bluegill, pending answers on the other questions posed thus far.
You might not have to worry about doing a full-on commercial stocking right now, as it's your money in a kind of public pond.
I would certainly go to a bait store and try to buy 10 dozen fatheads or so, just for the deep excitement of stocking fish.
Catching a few bluegill from other waters might be an avenue as long as your are good with fish identification. Accordingly, you might want to sort any fatheads you buy to make sure they are just fatheads. Sometimes other rough fish can get mixed in.
Sounds exciting!
