If her name is not on the deed then the house remains your separate property. However, any appreciation in the value of the house because of work you did during the marriage, such as new floors, landscaping, etc. is marital property. In addition, if you have reduced the principal on the mortgage during the marriage, that reduction in principal is marital property.
Helena M. Nevicosi
Attorney with Rosen Law Firm
4101 Lake Boone Trail, Suite 500
Raleigh, North Carolina 27607
919.787.6668 main phone
919.787.6361 main fax
301 McCullough Drive
Suite 510
Charlotte, NC 28262
Main Voice: 704.307.4600
Main Fax: 704.943.0044
1829 East Franklin Street, Bldg 600
Chapel Hill, NC 27514
919.321.0780 main phone
919.787.6668 main fax
The response posted above is based upon the limited factual information made available and is not intended as a full and complete response to the question. The only reliable manner to obtain complete and adequate legal advice is to consult with an attorney, fully explain your situation, and allow the attorney sufficient opportunity to research the applicable law and facts required to render an accurate opinion. The basic information provided above is intended as a public service but a full discussion with an attorney should be undertaken before taking any action.