I am wondering what I need to file as in my upcoming 2007 return.

My divorce was final in January of 2007.

2006 returns I filed as Married filing separately.

However, another issue is my ex wife passed away about 2 weeks ago from excessive alcohol (liver cirrhosis) .. she was 34 and that was the reason I filed for divorce in the first place.

Now, I changed my federal and state filing statuses to single 2 I believe as I have our daughter .. I did this back in january.

Can I still file as married filing separatly?

single?

what am I supposed to file as?

I am in Michigan.