Should I file bankruptcy before I get married [sic] how does it affect us financially [sic]
You want to know how it will affect "
us"? I'll tell you. Not one iota.
As for you and your fiancée/spouse, whether before or after matrimony, it is likely to strap you to a Chapter 13 Plan and you can live like paupers for 36 months.
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Incidentally, where did you "
attempt" to learn English grammar? The same place you learned how to budget your income?