These taxpayers were limited to using only $250,000 ($500,000 on a married joint return) of net business losses against non-business income.

However, my gut is telling me that since we file taxes jointly, the federal government won't let that fly.  

A Joint Venture (JV) partnership is probably a better fit for you now.

We file a joint return.

It’s a knee jerk reaction that sidelines LLs.

I am also seeking someone who flips in the area to do a joint assignment with.

But what I read in several advisories sent out by law firms that represent financial institutions indicate something else: Like this advisory from Thompson Coburn, that quotes a joint statement put out by all credit agencies (FDIC, etc.): "The agencies have confirmed with staff of the Financial Accounting Standards Board (FASB) that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, are not troubled debt restructuring."

Will the EIN create complications when we file taxes because currently we file married filing jointly?

Thanks for doing so, lots of knee jerk reactions happening. 

The live in daughter decided since she was the only child to take care of mom she should be the only one to benefit from the sale of the house so she listed it for sale, found a buyer and conveyed it as AIF using the POA and deposited the proceeds in a bank account held jointly by mom and the live in daughter.