You may. As Sue points out, you will be asked by the title company to bring down your husband to sign a quit claim deed. My family law and estate planning experience tell me this is near meaningless. It may have some meaning in the fact that it creates litigation later (why did he sign it? what was their intent? were disclosures provided?).
The best thing to do, especially since your husband has properties in his own name as well, is to have a written agreement in the form of a living trusts. That's right...living trusts between married couples are "Trust Agreements". They can spell out all the terms regarding your intent, making such terms legally binding during the marriage, upon divorce, or upon death of either or both of you(or any other contingency), and of course will be binding upon the kids, the estate, your beneficiaries, etc.
Also, since you have investments and are considering investment properties, you may need to do some estae tax planning. The living trust will provide the cornerstone for such tax planning, starting with the A/B trust you've probably heard of a thousand times (potentially saves Hundreds of Thousands of dollars in taxes).
-David A. Turturici, Attorney at Law / Broker