Subject-to.
The existing loan stays in place; we take title subject to it and make the payments. Your name stays on the loan, you trust us to keep paying. This is the simplest structure and works best when the existing loan terms are favorable. Lenders technically have a due-on-sale clause, but in practice they rarely call performing loans.
Wrap.
You carry a note from us at one rate (say 7%); your existing bank loan stays at its rate (say 4%). We pay you, you pay your bank, you keep the spread. Mechanically more complex but can be very tax-efficient.
Full payoff plus second.
We pay off your existing loan at close and you carry a smaller second-position note for the balance. Cleanest legally because there's only one debt remaining. Less tax-efficient because you take more cash up front.
We walk through each option, the trade-offs, and what makes sense given your specific loan terms, equity position, and tax situation.