There are two main ways to utilize this exemption.

I'm considering investing in STR in Hawaii to diversify my investment portfolio (mainly for capital appreciation) as well as it being a regular vacation place for my family.

Look for mixed-use properties with a Main Street vibe or location.

Main goal of All In One heloc or 1st Lien Position Heloc:  Lower your daily average balance.Main Drawback: Rates are substantially higher than 60% of current 1st mortgage balances.If you are mostly living paycheck to paycheck and your money leaves your account as soon as it comes in to pay bills, this is not for you. 

If so and the monthly payment isn't too bad then you're still moving the needle forward if your main goal is wealth generation and not just cash flow. 

The main reason is that it is not initially set up for a Real Estate business like other “real estate-specific” accounting software.

Right off the main drag. 

Granted we only have 17 but still, I’ve never used anything except a simple excel spreadsheet and all my rental properties have a separate savings account under my main account at my local bank.

I don't plan on selling; I'm mainly just curious how people make $ in these markets when rental rates are on the decline since COVID.

I am a smaller Main Street Type investor and have created/manufactured SFR notes as part of my fix-n-flip program for many years.