When Lionel Cox died the 92-year-old was frail, vulnerable and sitting on a fortune.

The bachelor had no known relatives when he went into Melbourne care home, Cambridge House, in July 2015 for respite as his health rapidly deteriorated.

It was there he met Abha Kumar, a nurse who within days would help him hand-write a will, making her the sole beneficiary to his $1.5 million estate.

Kumar was this week banned from being a registered health practitioner and from working or volunteering in any sort of aged care capacity for five years for engaging in professional misconduct and forcing staff to aide her.

Mr Cox was living alone in his Fitzroy house with the help of kind neighbours and a Brotherhood of St Laurence case manager before moving to Cambridge House.