I got sidetracked....one of the things to sort out is if the deed is a for a life estate , most likely GM conveys life estate to her daughter , grandson is remainderman.
IF its fee simple absolute to daughter ...is that not the end of any practical question about her ability to sell it in 0Ps fact pattern?
the more practical problem , if it's fee simple , being if Mom does not address the property in her will, GS or somebody will have fun of intestate administration probably in UK with secondary administration in NE ?
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