They may be entitled to some assets but it is not a certainty. When a person dies intestate (without a will) the state probate succession laws apply. All assets, property and debts of the deceased are entered into probate. All creditors are notified by the appointed executor or executrix of the probate filing. Creditors have a period of time as specified by state law to file a claim against the estate. No assets or property will be distributed until all debts and taxes are paid according to their priority and to the extent of the available assets. Once debts have been paid, any remaining assets and all exempted assets and property will be distributed to surviving family members. The general succession rules are, the surviving current spouse and her children, then the biological children of a previous marriage(s), the parents of the deceased (if applicable)and so forth until the estate is depleted. The issue of unpaid child support is not likely viable unless there was a court order and the state chooses to make a claim against the estate for repayment of any public assistance that was received by the minor children. Any "interested party" has the legal option of contesting a will but not probate succession law. The only option if the adult children are not included would be for them to file a suit against the estate in the appropriate court.
Child support is not a determining factor in the disposition of a parents estate when the children are no longer minors.
Whether you will inherit an interest depends on several factors. It depends on how the property was held. Joint property owned by spouses with the right of survivorship passes automatically to the surviving spouse. If the decedent had a will the property will pass according to the will. In some states the children may elect to take an intestate share if they were left out of the will. If the parent died intestate, the children may inherit an interest according to the laws of intestacy of your state which you can check at the related question link below.
You need to speak with an attorney who specializes in probate in your area. She/he can answer your question about the practices in your jurisdiction and any rights you may have.
No
The spouse gets the home. The children are not entitled to a portion of the home. They are not required to get anything from the estate.
All her biological children are equally entitled as heirs at law.
A current spouse would have first claim.
In general, you and your mother's other children are entitled to the same benefits - child support, Social Security, a share of the estate, etc.
The second marriage is invalid, so the children of that marriage are illegitimate. Whether illegitimate children are entitled to a share of the inheritance depends on the law of the particular country involved - which you do not specify.
Because they have an estranged marriage and aren't physically close.
Yes. All the children would be considered heirs at law under the laws of intestacy. See related question link provided below.
She will be entitled to what is her share legally.
The spouse is going to be entitled to a part of the estate. At a minimum it will be a dower right, but it could be more depending on the state.
They can certainly claim a portion of the estate. They are entitled to it as much as any other descendants. And in most cases if there is no will, there is a portion of the estate that they get.
Not at all! Florida regards anything purchased before the marriage as separate during the marriage. Only items in both your names or items purchased during the marriage are eligable for distribution.