Las Vegas
Las Vegas marriages are legal worldwide. So, yes, you are married if you got married in Las Vegas.
If it was legal in Nevada, it is legal in Michigan.
You are already married. You can have a ceremony in California but the legal marriage took place in Las Vegas. If you apply for a marriage license in California they will ask if you have ever been married before. You must disclose that you are already married and California will not issue the marriage license.
No, but you'll have to get a marriage license in Vegas
Yes
Yes, you have to contact Las Vegas. That is where the license was obtained and should have been filed.
yes
The legal drinking and gambling age in Las Vegas is 21. No exceptions.
The issue is not where you got married, by where you are attempting to get divorced. Every state has enacted laws that govern domestic relations, ie: divorce. You will need to be in complaince with the laws in the state of Nevada in order for your divorce to be effective.
Yes, Las Vegas weddings are internationally recognized or legal. In order to prove you were married in Las Vegas you will need to obtain a Certified Abstract of Marriage Certificate. In addition, many countries require an Apostille. Regulations vary from country to country. It is best to check with your local officials in regards to what paperwork is required.
Not if you get married in Las Vegas Nevada.