Next think about joinder. Are there indispensible parties not currently in the suit?
Anyway, the first question is: do we want federal or state court.
Then there's § 807.03 or something: about the enforceability of a settlement agreement. If the offer is not in writing, does it apply in federal court?
This is precluding the same claim.
Now obviously, Frier had not fully litigated his civil rights suit in the state court suit. But he could have brought it then. That's the precluding. But how is this fair? Well, he had the chance to bring whatever claims he wanted, and he chose not to do so.
Now suppose you're the city. How do you litigate this case (i.e., the § 1983 claim)? You're going to make a motion for summary judgment (a motion to dismiss is based on the complaint only, and you need to have an affidavit and the state court judgment attached). So you'd file an answer and then a motion for summary judgment. Well, actually, you could file it as a motion to dismiss, and it would be treated as a motion for summary judgment.
So you say "release all claims related to anything that occurred up to the date of this settlement agreement." That ought to end things (because of course nobody is going to release future claims).
Alternatively "release all claims having anything to do with our business transaction, whether past, present, or future." So that will end things for all time, but it's limited to the facts at issue.
Preclusion is binding on parties, and relates to law and facts. Can't be re-argued.
So there was a remand for tral here, but it looks like the brothers were pretty much a part of the suit. Still, they weren't parties (i.e., they couldn't have appealed the judgment).
If you are in litigation over property that is partly owned by non-parties: file a motion to stay the litigation while you prosecute a quiet title action to settle the ownership of the property where all parties can be involved. That will bind folks later.
The moral: a strong legal relationship is required to bind someone to a judgment to which they aren't a party.