How do you know that your father didn’t ask someone to submit the severance of joint tenancy before he died and it only got registered several weeks later. A two-week delay at the land registry is not unusual.
How do you know that it was not his wife who severed the joint tenancy?
If in your father’s well he left everything to his wife for life with the remainder after her life interest to go to the four children, that is what happens.
She cannot do a deed of variation of your late father’s will to vary his will in respect of anything other than what she has an interest in. Hence, if she has a life interest in your late father’s estate, the only deed of variation she could effect would be in respect of that life interest.
What I strongly suspect is that your understanding is not quite correct and that your father’s will left everything to your stepmother with the wish that she was then to leave everything to the 4 children.
That wish is not enforceable.
Can I clarify anything for you?
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