Treash:

Ordinarily, the law makes provision against jactitation in marriage. Jactitation exist where a partner presents herself to make people believe she's still married to her ex-husband. Same with man. A good example is bearing his surname. It must be noted that a man has a right to sue the woman for jactitation, but his case will only be successful if he can show that the woman uses his surname to defraud people.

There was a recent case where the man sues the ex-wife for bearing his surname after divorce. Her defence was that changing the surname to her maiden name would occasion a set back on her music carrier, and the court approved her decision. Therefore, a woman has a right to bear whichever surname she chooses provided it's not for illegal purpose or to defraud people.

Barr Adeolu Ayo Aderinto.

thesicilian:
If the man is poor when will revert to her maiden name, but if it's a wealthy man whose name opens doors I bet you she'll keep it.