I am not questioning. Just tip for those reading.
Each loan agreement may state this differently. Some states have laws related to this. Oft first mortgage for purchase has only the property as collateral. That it, if delinquent, the bank has recourse of foreclose. Subsequently, they may take the real property property; sell it. They keep what they consider is their due.
Typically, second loans, refinance, & line of credit write their own rules into loan contracts. They are not bound by as many pesky limits on what they can take form you. Read them. They are usually awful.
Credit Unions are generally preferred. Bank tend to be awful.
Mine are general comments. I am known as a fiction writer.
Disclaimer: Mark Twain (1835-1910-To be continued) is unlicensed. His river pilot's license went delinquent in 1862. Caution advised. Daily Paul ☑