Additionally, local laws and regulations can also impact the speed at which an eviction can be carried out.Understanding these key aspects of the eviction process can help landlords and tenants navigate this challenging situation more effectively.

@Don Konipol in addition to what @Chris Seveney said, also there is the financing cost. 

Additionally, you may want to consult with a real estate attorney or financial advisor to ensure the deal is structured in a way that is advantageous for you.

In addition to considering what lenders opinions might be (currently Fannie and Freddie don't want to see any more than 10% of units being STRs but not sure about LTSs).

The way I got around it was I had capital that I could use to payoff the load and then the bank issued a new loan for the BRRRR amount, which I then got my capital back plus the additional capital based on new ARV.  

Also not sure why anyone would redeem this property as they would then be liable for the 2nd position lien potentially, whereas they could just by it from the first if they sell it free and clear.

Alternatively, DSCR ratios may not work out due to efforts to maximize the loan amount and avoid additional cash contributions. 

It would convert the existing structure from a 2 bed 1 bath, to a 4 bed 2.5 bath, adding an additional 2000 square feet of space.  

Others may disagree on that but rents may also increase which will put me in a better position in the future.

I will be in the same position with our latest acquisition, a building I bought with a commercial loan, in about three and a half years.Your intentions are a bit muddled in one place: you want to "sever the house" to make it a duplex and then "Airbnb or rent basement."