Land Registry

[wenlocklad]

My Father -in-Law has recently died, and, he along with his wife, own 33% of our house.
Although I understand his interest passes to his widow, what is the process for removing his name from the mortgage deeds, and, is there a fee involved?

[Nether Edge]

If house is truly in 3 names, official certified copy death certificate should be sent to mortgagee (lender) and HM Land Registry.
If you meant only that f-in-law had 33.33% stake in value but wasn't a joint owner, answer is more complex. Consult solicitor.