Closing a mortgage refinance typically requires a lawyer or title company. Refinancing involves paying off an existing loan with a new one, often from a different lender. To ensure a smooth closing, have a valid government photo ID, provide updated debt statements, and share your lawyer's information promptly. Scheduling closing during off-peak times and opting for virtual closings can also help avoid delays. Refinancing can lower interest rates, reduce payments, or access home equity, but costs vary based on lender fees and legal expenses.