Or since it is a long-term investment and not the primary source of partnership income, could it be considered interest income that would not be subject to SE Tax (as if I had received a 1099-INT)?

the way the multimillionaire do it is to delay and defer tax as much as possible, so after the accumulate so many loss then when you sell one for profit for example from flip/rent strategy, you could use it to offset the gain

I mentally prepared to pay longterm capital gains tax - as it would hard to find a good deal soon.my hope is yo buy a bigger property after the market corrects .I have more properties, not thinking about to sell as they are providing great cash flow .

Then as long as you don’t have a job back in MA (or you’d be taxed there anyway) and your properties aren’t in states with income tax (as they would tax you anyway) as long.

I am self employed and run a trucking company so I write off my income to pay as little tax as possible.

If I was paying $1mil (or perhaps more realistic $250k) in tax a year, I would/could be ridiculously happy! 

I am in California and completing my taxes on Turbo Tax (as I do annually).

@Amit Shukla here is a blog: https://www.anomalycpa.com/post/clearing-up-confusion-on-the-short-term-rental-tax-a-biggerpockets-top-post

@David LopezI use turbo tax as well and have 19 rentals.

And depending on your situation you may have self employment tax as well.Your other option is a 1031 exchange.