If you wish to remove a co-applicant’s name from your joint home loan, you need to ask your lender for a novation. The original loan will then be substituted for a new one, in the name of the person who will take complete financial responsibility for the home.
If your lender does not allow novations, then you need to ask your co-owner to get the home loan refinanced. However, keep in mind that their credit score should be good enough to make them eligible to apply for a home loan balance transfer in their sole name. They will need to provide a few documents, like the past six months’ bank statement, pay stubs, tax returns for two years, and KYC documents.
You will also need to sign a quit claim deed to give up your ownership of the home, but if your co-owner does not qualify for the refinancing then you will have to consider selling the property off.