Yes. extremely, you can get a minimum of £5000 fine or even get life in prison in Taiwan.
Many polygamists are legally married to their first spouse, and only religiously or 'spiritually' married to the other spouse, without a legal marriage liscence.
You can find the countries where polygamy is legal in the link below. However, you must relocate. If you are not from that country and just go there to get married it will not be legal if you return to a country where plural marriage is illegal. In Western cultures you can only be married to one person at a time. The single exception if Saskatchewan.
The person who you married is in legal trouble because you are not allowed to do that--it is called bigamy. So, for all intents and purposes you are not married, and you should take care that your finances are separate in all ways until your spouse has divorced.
No. Your present spouse had no legal responsibility for you before you were married.
No. You cannot get married until you get a legal divorce from your present spouse. Separation doesn't end a legal marriage.
Your spouse is your legal next of kin until you dissolve your marriage by a divorce. Each will inherit from the other if either should die while married. You need to legally dissolve your marriage. Living separate lives but remaining legally married can cause all sorts of legal problems.
Until you are legal you cannot file a tax return. If you are legal on December 31st of the tax year you can probably file as follows. You can be listed on a return as spouse and write applied for in the place for your return. You will have to file this by mail as it will be able to file electronically.
In most states in the US no. As long as your marriage is legal and you married in the US.
There is no time limit. The length of time of the marriage has no effect on the statutory rights of a legal spouse. The surviving spouse has legal rights . . . period. You can check those legal rights under your state laws of intestacy at the related question link provided below.
NO!!!!!!!!!!!!!!!!!
If you have his permission yes.
It depends on the state that the property is in. In a separate property state the spouse would not acquire an interest. In a community property state if the property is acquired by deed during the marriage it becomes community property.