okay
@Den***
, just so you're clear, what you aren't gonna be able to do is change a Non-B VISA to a Non-O VISA inside the country.
Now if it's just a case of you using wrong terminology and you're really on an EXTENSION OF STAY from a non-B visa and are simply changing the reason for the extension from employment to another reason, you CAN and will be able to do that.
You'll cancel your current extension and immediately apply for the new extension by meeting the requirements needed to get an extension base on marriage.