Quoted from fosaisu:
Almost assuredly. With few exceptions (e.g. student loans), outstanding debts don't survive the bankruptcy process, so everyone he owes money to including credit card debt, car loans, outstanding mortgages, the IRS, etc. is in line for their share of whatever assets are in the bankruptcy estate.
Debts that are excepted from discharge under one of the provisions of 11 USC §523 survive the discharge.
Please see https://www.law.cornell.edu/uscode/text/11/523 and you may want to read (a)(2)(A & B), (a)(4), and (a)(6)
Note that to preserve a claim so that it is *not* discharged ('excepted' from discharge), an adversary complaint has to be filed to assert the rights, since exception from discharge based upon (a)(2), (a)(4), or (a)(6) is not 'automatic' and the right to have it excepted must be asserted, else it is waived.
Note that debtors who are denied a discharge under 11 USC §727 do not have their debts discharged.
You may wish to read (a)(2,3,4,5,6,7); (c)(1,2); (d)(1,2,3,4)
You may contact me at my office or in a PM for further details.