Deuteronomy 24 is fun, because it is weird.  There is no unifying message behind this chapter, except maybe advice on how to resolve disputes.  I think.

1.  The first lesson is about divorce and remarriage.  If the man doesn't like her for some "unclean" reason, he can divorce her and then she can remarry.  But if the second husband doesn't like her for some "unclean" reason, then the first husband CANNOT take her back.  I wonder what situation occurred where such a rule should ever even be addressed?

2.  The second lesson is that a newly wed man can not go to war or be bothered with business matters.  He has to spend the whole year trying to make his wife happy.

3.  Anyone who steals slaves should be executed.

4.  Do what the priests tell you to do, or you'll get leprosy.  That's an awesome rule, and such a guilt trip!

5.  Don't oppress the poor, whether they be slaves or just poor.  That's actually a decent rule!

6.  You shouldn't kill the father for the crimes of the child, and vice versa.  This is such a good rule, but it contradicts other Biblical teachings that the criminal's progeny should be punished.  That's the whole concept of original sin, isn't it?

7.  Finally, the last rule is to treat kindly strangers, orphans, and widows; and share whatever you have with them.  Another nice thing to practice.

In summary, we went from divorce and marriage; to treating strangers kindly.  And there isn't a real thread of unity between the two subjects.  I think that this document was an attempt to legislate random occurrences that just happened.  But the solutions are so arbitrary and don't really solve the problem, or are just completely ignorant.