flu – our commercial property loans are typically sized to the cash flow generated by the property, subject to a maximum 65/70% LTV. A good starting point would be a debt yield of 12%. My guess is your property is triple net, so take your NNN rent and divide it by .12. This should get you an approximate amount you could borrow (obviously depending on credit characteristics including who the corporate tenant is, when the lease expires, where the property is, etc).
We are almost always a recourse lender above 50% LTV, so you and/or your family would need to personally guaranty the loan.
Typically terms are up to ten years with a 25-year amortization. You can get variable or fixed rate financing, but the spread above the corresponding LIBOR/Swap rate will increase the longer fixed you go. Spreads above LIBOR/Swap will range from 3% to 4.5% depending on the deal.
Hope this helps. If you’d like me to take a closer look at the specifics, send me a PM.