Granted this is far from scientific formula but Buzzfeed has collected a dozen tips from a dozen different divorce attorneys. They offer advice on what to know before getting married.
Now, while most of this could be for entertainment value there are some good takeaways here. While somewhat pro prenup heavy there are several tips on researching your states divorce laws. It may not be the most romantic thing to do as you are composing your vows but view via hindsight it can be helpful to at least familiarize your self with them.
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