in florida....if a man is not legally divorced,for religios and financial reasons,and has been cohabitating with a divorced woman,what does he need to

I'm not sure what exactly you are asking, but I am guessing your question is how do you proceed to get divorced if you are separated from your spouse and living with another woman, who happens to be divorced. If that's your question, then all you have to do is file a petition for the dissolution of your marriage. Florida is not like other states (Tennessee for instance) in that you do not have to prove-up a divorce. In other words, Florida's standard is that the marriage is irretrievably broken. You do not plead or prove why it is broken, and you can be sanctioned for doing so (like adding information such as adultery).  If your spouse is not contesting the divorce, and there are no kids, or assets to be divided, then you can typically do an "Uncontested Divorce" ("UC"). The UC is typically much quicker than a standard divorce. You file the petition and a few other documents and then in some cases a judge will sign the order without even going to court. There are many benefits to hiring an attorney that has handled these types of cases in that you can save a lot of time, money, and hassle.