Trust your instincts, gather as much information as possible, and make informed decisions based on the current market conditions.

You also have the "cost" of your time, which will vary a lot, especially as you ramp up while learning the STR ropes.  

If you have the 80% LTC loan, keep in mind that the lender will likely require anyone with a 20% or more interest (that's going to vary from program to program/lender to lender) to guaranty that loan along with you.

For the purposes of calculating the limited interest deduction, the total mortgage debt owed would include both the individual mortgage on Unit A and the owner's share of the underlying mortgage.So, the total mortgage debt owed would be $800,000 (individual mortgage) + $200,000 (owner's share of underlying mortgage) = $1,000,000.Therefore, the owner would be limited to deducting mortgage interest based on this total mortgage debt of $1,000,000, not just the individual mortgage.Thus, the deduction for mortgage interest would be calculated as:($750,000 / $1,000,000) * $40,000 = $30,000Therefore, in this scenario, the owner would be able to deduct $30,000 of mortgage interest for federal income tax purposes.

Identify your target market - Research different locations based on your chosen strategy.

This is based on the future reservation of my rental business (I guess I can pull a proof of income from Airbnb).

I would look into these guys https://www.submetersolutions.com/If that doesn't work, just split the usage based off square footage and charge the tenants in proportion to that - not 100%  accurate but good enough.

Currently I am looking at "Your In Town Home" , "Vision Realty Management" just based on the google reviews but would love to get some ideas based on anyone else's personal experience.

Someone suggested at shower receptacle for the base and subway tile the way up.

Are most lenders looking at my W-2 history and DTI to determine whether I qualify for the refinance or is it more based on the asset and/or its cash flow?