I’ve been paying off extra principal each month but have started thinking it might make more sense to save up that amount and do a recast when it gets large enough to increase cash flow.

What I see is there are many people from abroad who just want to park money here vs their home country due to inflation or some other reason who are willing to take minimal returns in exchange for principal safety. 

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).

I never ever bought anything or would buy anything without the same principals I buy or lend on today IE there has to be equity day one.

The general principal of refinancing out of a 4.32% rate and into a 7.5% to 8% rate makes no sense in really any context.

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).

Outside of my principal & interest costs, here are my monthly expenses:Electric: averages $300Water: averages $50 (including irrigation water for lawn)Management (includes weekly pool care, trash cans out & in, pest control): $280HOA: $52Property taxes: $400Insurance: $325Lawn care (weekly): $100Florida STR license: $15Niceties (internet, tv services for guests): $100, and this is generous as I include some stuff I pay for from my own house that would cost more if I didn't. 

bare bones website  no mention of he staff or principals.. so maybe.. just dont send up front money .if they hound you for up front money then you have your answer

The principal, interest, taxes, and insurance (PITI) might be approximately $850.

Website  is it brand new  or not.2. are the principals on the website or key staff with their contact info.3.