YES: A HECM is a lien just like a traditional mortgage. You will always retain 100% ownership, as well as the right to sell your property at any time. Repayment is generally required when the last surviving spouse permanently moves out, sells or passes away. The remaining equity in your home belongs to you and your heirs.
The funds received from a HECM do not affect regular Social Security or Medicare benefits. However, needs-based benefits such as Medicaid and SSDI may be impacted. Please contact your Medicaid or SSDI consultant about your specific situation.