Your Fortress crumbles to dust in flood of bureaucracy
the sheer enormity of this post is impressive and i acknowledge the work involved in the thought and writing. just, if i may mention...
these ideas seem to be heavily influenced by US legal system and thoughts. it is mostly focused on pure law, letting culture and politics out of sight. if laws su..."aren't appreciated" france and russia are examples for ways how people change that themselves. egypt is an example that people grow tired of overthrowing the government if the successors don't get better after too many tries. maybe ideas from the not-so-ideal actual implementation of legal systems and ideas from other parts of the world might make it even more interesting.
to make a legal system sane it requires the implementation of more sophisticated culture and politics and influences between them. considering that DF aims to simulate existence that seems to be an imperative.
i can't see a real democracy or (military, economic or religious) dictatorship possible. such would not just require laws but also politics and culture.
also the leader might be split apart into chancellor, maybe chained by some parliament and a neutered president, i. e. making a hereditary monarchy president by law and let the chancellor be elected - which way ever. for that you could take a look at the UK or netherlands.
also citizen should be - at least influenced - in decision making by their intelligence. not-so-intelligent beings should rather listen to loud, short and simple worded
market criers politicians and rather support the ideas the most people dislike to show that they are generally unsatisfied with
their life circumstances in the fortress or their civilization or even to damage their fellow men, dwarfs, elves, whatever. a school system might be a good idea, not just for politics/laws but also to train kids to start adulthood with a higher skill in a certain profession... but that should be subject of another thread... still, in a democracy not-so-intelligent beings will be breaking - at least influencing laws and will turn it into a dictatorship if their kind outweighs and will increase crime which again is a matter of law. then there will be dictatorship or some tiny government making laws and things citizen just don't care about. maybe they might even have a second government of their own. how would you handle this by laws and punishment?
slavery isn't just (limited) legal or illegal. it can be fully illegal by law but people can still be legally forced to work for just a slice of bread a day, some by economic pressure ("work or starve"), some by cultural pressure ("you are worthless without a job"), some by emotional pressure ("love is shown by value of presents" or "i love you. you love me, right? so go prostitue yourself for me"), some by legal loopholes. that brings in the suggestion of begging and gifting (
http://www.bay12forums.com/smf/index.php?topic=159491.0) and prostitution (not linking that discussion, it has a funny smell sometimes). begging might also be a matter of law. but laws alone don't feed one so beings without a job, for reasons of health, laziness or simply because there is not enough work for all citizen, need social benefits, friends, help of some NGO or a mix of that. same for prostitution, which can be forced by needs or lust, though it might be tricky to implement that in a proper decent way. that would be a matter of laws as well.
i also can't find the possibility of "monetary incentives" by lobbies for the rulers, laws about such is a heavily discussed subject in several countries. "i know, selling this stuff is illegal... but maybe we could discuss it further and you could overthink this again at a good dinner, ok? i pay for it. it doesn't have to be allowed by law, just secretly by justice, just for me would be enough. they don't have to actually allow it, they just gotta be blind..." or just "i pay for the dinner and you listen to my idea, ok?! i know a fine expensive restaurant..." social skills required for that already are in the game. besides it could be merged with the suggestion of persuasive magic and minions (
http://www.bay12forums.com/smf/index.php?topic=159440.0).
not every tribe, city or civilization requires laws. some have laws no one cares about. some fully lack of them. some follow those with the biggest clubs, others those with the biggest words and some are just a free for all deathmatch.
citizenship is not less controversial than sexuality. a fully separated fortress should have some drawbacks, like it might die off after some generations since a gene pool of 200 is just too tiny to keep the peoples alive and healthy. laws for incest and such would be useful as well.
well, these are just some hints that a legal system might benefit if there is more than just laws, like laws and revolution don't fit well together. these thoughts can be improved a lot and there is a lot more which could be taken into account. i suggest to be very careful with hard coded enforcement of laws since that might cripple the possibilities of the game.
sometimes my writing is a bit mistakable, i am not saying the idea of sophisticated laws is bad, rather the opposite, i just believe that it needs to be extended and opened, a lot.