some basics on the House District 50 upcoming vavancy:
http://ncleg.net/Legislation/constitution/article2.html
Sec. 7. Qualifications for Representative.
Each Representative, at the time of his election, shall be a qualified voter of the State, and shall have resided in the district for which he is chosen for one year immediately preceding his election.
http://ncleg.net/Legislation/constitution/article6.html
Sec. 6. Eligibility to elective office.
Every qualified voter in North Carolina who is 21 years of age, except as in this Constitution disqualified, shall be eligible for election by the people to office.
simple map