Thank you. On the basis that your husband left no will as you will likely be aware you will be entitled to all his personal possessions and the first 3250K of his estate which I suspect from what you say will cover everything he owned at the time he passed away. If there is more in terms of assets the rules are slightly more complex for any amount over that, but essentially anything over the above figure gets divded in half, with one half going to his children and the other to you as a right to the income and then to the children after our death.
You also have a right to act as administrator of his estate should you wish to which means you will control the legal process.
In terms of whether your husband is entitled to anything from his mother's estate, this will depend entirely upon the terms of his mothers will. You can ask for a copy of his mothers will. If the family will not release a copy of it to you you can apply for a standing search of the probate registry and once they apply for probate the will becomes a public document and you will be sent a copy by the probate registry under your standing search application.
If his mother left him anything then his estate will inherit that and you will take it under the above rules. One thing to be aware of is that it is not uncommon for wills to include a survivorship condition which may say that in order to inherit a person must survive your mother in law by 28 days or a similar period. Such a provision is not in every will but is is not an uncommon provision. If there is such a condition, and your husband did not meet the condition specified then his estate will not inherit. The only way to determine this is to obtain a copy of his mothers will using the above approaches. Once you have this you will be able to determine what you are entitled to.
If you require any assistance either in terms of applying for probate for your husband's estate (if you decide to act as administrator) or in terms of applying for a standing search for a copy of your mother in laws will, please do let me know.
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