How is it for preparing taxes? 

I consider Vancouver area the 'sweet spot' as you can benefit from no Income Tax from Washington side, as well as no Sales Tax from the Oregon side.

Quote from @William Thompson: One thing I’ve noticed working with a lot of investors is this:People spend a ton of time researching markets, strategies, and financing…but almost no time building the habits that actually keep their portfolio healthy long-term.Here’s the simple truth:Your systems will make or break your growth.Not the market.Not the deal.Not even the interest rate.I’ve seen investors with average deals but great systems outperform people buying in the best markets with none.Things like:Keeping clean booksTracking expenses in real timeReviewing your numbers monthlyHaving a game plan before tax seasonThese aren’t exciting, but they’re the difference between “I think I made money” and “I know exactly what’s working.”Real estate is more forgiving than most businesses… but eventually, disorganization catches up.The investors who last are the ones who treat it like a business early — even when they only own one door.What’s one system or habit that’s helped you stay organized as your portfolio grows? 

This would save me thousands in interest + not having to pay the closing fees to refinance in 2031.

Is this more of an income tax strategy?

All of your debt is 6% or less, and tax-deductible.

Larger properties allow cost segregation and bonus depreciation, offering major tax deductions.

I don't want to pay federal income taxes on the earnings I give them, the "interest" payout.

Look at how the property is structured, is it in a nice neighborhood, do they have an HOA, or would the neighborhood / local municipality like you being there or tax you more?

I am an investor from Australia with a few doors in Toledo & Akron. I am looking for a RE focused CPA that has experience assisting foreign investors. My previous accountant sold his business & the new owners ...