You no longer have a legal relationship to a step-child from a previous marriage.
It is certainly not legal. If he was not 18 at the time of marriage, then there could be an issue. If he was over the age of 18, while it is still an issue, it will not invalidate the marriage. Consult an attorney for your specific situation in your specific jurisdiction.
No. Marriage is a legal status. You need to obtain a divorce to marry again.
As long as the date does not affect the validity of the marriage. If they lied about their age to get around an age restriction, it can be declared void.
you proubly could but your whole life with that person would be a lie and they may not like it that you lied to them.
No. You can only be married to one person at a time in Western countries. The subsequent marriage would be of no effect.
Yes. The legal implications would only be if they lied and caused you harm.
You entered into a legal marriage in Mexico. In order to re-marry, you must end the previous marriage. A divorce decree is going to be needed in order to make any subsequent marriage legal.
If the marriage was legal in every other way then the answer is yes. However, it would help to know your wife's current age and how long you have been married. In some states the marriage may be voidable if one of the spouses challenges it. If you have questions about the validity of your marriage you should consult with an attorney who specializes in family law.
yes he is from will smith's previous marriage.
yes
Its illegal