Most of us saw record occupancy and nightly rates during the pandemic.

Mortgage rates make buying a permanent residence painful and costly... 

Interest rates will skyrocket, as inflation comes back. 

This is what I would give private investors with todays rates.

Rate will not be pretty... 

- Am I able to do a mortgage assumption from personal to the LLC to avoid the balance being called and effectively keep the interest rate?

Here are some steps and resources that may help you confirm your numbers and conduct due diligence:Rental Income Analysis: To determine the possible rental income for your duplex, look up the rental rates for nearby homes that are comparable to yours.

HMLs offer quick funding, but keep in mind the higher interest rates (8% to 18%) and shorter repayment terms (6-18 months).

As far as a general STR strategy, a nice 3x2 house within an hour of a major attraction is not too much to manage and can drive a nice nightly rate if you go with high end design. 

@Yael FuerstIf they are rentals you could get a DSCR loan.If the loan you get is lower interest rate than the current loan amount then it makes sense to do thatFor example if your debt is 10% and a DSCR loan is 7%, then pay the lower interestHope that makes sense