Most likely you will not get any need based FA. You can apply to schools that give Merit aid, without considering family finances. You must run Net Price Calculator for the school you are considering. How many years do you overlap with your brother in college ? You may get some FA when he is attending college. Unfortunately, colleges will not give you FA because your mom is still paying off her own student loans and has other debt, and it is tough to pay 70k.
This is quite common than you think, and you have to carefully compile a list of colleges that you can afford.