The person has all the rights that accrue to the surviving spouse. See related question link below.
Depends on the will
You are two people who are married to each other who are separated.
Equal rights and access see link
The parents have equal rights regarding the children since no other legal custody arrangement has been adjudicated. They are also still legally married and the spouses would have legal rights each for the other if there was a medical emergency or death. However, each separated spouse could execute a health proxy, living will and/or Durable Power of Attorney designating another person to make medical decisions for them in case they become legally incapacitated and unable to direct their own medical treatment. You should consult with an attorney who can review your situation and explain your options under your state law.
It is called Rights of Survivorship.Rights of Survivorship~ the property automatically transfers to one spouse upon the death of the other.
The rights the childless spouse has in intestacy vary depending on the jurisdiction. In some jurisdictions, the childless spouse has the right to inherit the entire estate if there are no other surviving relatives. In others, the spouse may receive a portion of the estate alongside other surviving relatives. It is important to consult the laws of your specific jurisdiction to determine the rights of a childless spouse in intestacy.
New Hampshire recognizes common law marriage for purposes of probate only. In other words, they recognize a common law marriage at the time of the spouses death to ensure the surviving spouse can receive the inheritance with no issues.
If you are legally separated, you are free to see other people. South Carolina divorce does use adultery as one of the grounds options, but dating while you are separated is not adultery.
In law England and wales) does a spouse have equal liability to pay off debts
A predeceased spouse refers to a spouse who has died before the other spouse. It is often used in legal and financial contexts, such as in estate planning or wills, to indicate that one spouse has passed away and their assets or rights may be inherited or transferred to someone else, such as children or a new spouse.
is it illegal for a spouse to blackmail the other spouse
Typically the spouse will inherit the property of a deceased spouse. A will may assign things to other beneficiaries. Consult a licensed attorney in the state in question.