In N.C. can a dismissed bankruptcy case be reopened to avoid foreclosure

You cannot "reinstate" a previously dismissed case for that reason (it is possible to reopen a closed case for certain other reasons). Depending upon how recently you previously filed bankruptcy and the circumstances of your choice to dismiss the other two cases, you may not be permitted to proceed with another case now - epecially if you failed to make Plan payments or failed to appear for the Meeting of Creditors, or failed to file all schedules, etc. on time. I certainly do not recommend that you try to file again without an attorney because if the Court views this third filing an an abuse, you could be barred from filing again for any reason for a significant period of time.