I have been ask to do 2019 tax return for friend, who recently died,,,,and had lived in care center for 6 years...private paying  about $50,000 - $60,000 each years.

Can I amend 3 years to file sch a with medical expenses for the past three years with receipts of care and daughter as Personal Representative for mother attached to returns.

Would I send all together (these 3 years) or each year separate?