Can mother remove my husband's name from share certificate

My question is - I lost my husband 3 years back . the flat is in my motherin law name and second is my husband name . Till last year we had got the NOC for the building and after his death my mother in law didn't allow me to stay in the house and we are still not in talking terms. Is there a possibilty that they can remove my husband name from the share certifcate after showing his Death certificate without my consent, as they have got the OC this month.