Most times, it's other asset classes in real estate such as single-family homes, apartment buildings, and commercial office and retail buildings that bring in more tax money from businesses and taxpayers which becomes more of a monetary issue. 

They could pass another stimulus and prolong it even more but eventually someone’s got to eat the costs and it won’t be the banks (it will be the homeowners) unless we put the tab on the taxpayer in an unprecedented move.

It truly was "free money" to me, graciously paid for by the taxpayers of the USA, courtesy of our wonky tax system. 

My husband is an Austrian national, and is not currently a US taxpayer, so I file taxes as married filing separate.

PM recieved Jan 2019 rent on Dec 31st for one tenant and put it on my 2018 1099 Misc as I am a cash basis Taxpayer.

Definitely don't underreport expenses, as Eamonn noted that is fraudulent - you are misrepresenting your income to the mortgage company.You can certainly work with your tax pro to make decisions that can draw out or accelerate expenses - taking or electing out of bonus depreciation, 179 depreciation, at what level  of expense you capitalize vs write off (de minimis safe harbor), election to capitalize repairs and maintenance you otherwise could have written off, making or not making small taxpayer safe harbor.Of course talk with your lender to see what they add back - if they add back depreciation/179/bonus, then that isn't a reason not to accelerate.

In the borrowed capital was used in an activity that is a mere investment, or is personal in nature, a 1099-INT obligation won't exist.A Form 1098 obligation is only triggered if the loan is a mortgage and the interest is received in the ordinary course of trade or business of the lender from an individual or sole proprietor taxpayer. 

There will be depreciation recapture added back to income, taxed at the taxpayers regular tax bracket, but for 18 months of rental, it is unlikely to be very much.Remember - the Depreciation Recapture is on the amount of depreciation allowed or ALLOWABLE, so even if they didn't take depreciation, they still get the recapture upon sale.

My carrying costs will be a tough one... as long as I can get one of my other tax lien properties sold pretty quickly, then I'll at least have some reserves to make the first tax payment or so while I'm getting tenants lined up.

It's a big decision and it's best to work with an estate planning attorney that specializes in that since it's still an actively litigate issue between the taxing bodies and taxpayers.