Wrap around mortgage

[Brad Spies]

Good Morning all, I am trying to buy my brother-in-law’s Airbnb and would like to utilize a wrap around mortgage to take advantage of his 3.25 interest rate/30 year mortgage. The loan is held with Chase bank. We are going to contact the bank today to see if this is approved with this loan type. He bought it as a second home (10% down). If approved could we just treat it as a land contract and go through a title agency. Thank you in advance for any insight.