Can a husband who is an attorney represent his wife in a matter in which he is n

Can a husband who is an attorney represent his wife in a matter in which he is not a named party and where he shares no common liability with his wife but in which he will likely testify as a witness for his wife?2. Can a husband who is an attorney represent his wife in a matter in which he is not a named party but in which he shares common liability and interests with his wife and in which will necessarily appear as a witness for his wife?3. Is it ethically permissible for an attorney husband who represents his wife successfully in a suit to accept attorneys fees awarded by the court if otherwise legally entitled to them?