If not, suggest an outside source for making similar calculations with the financing structure I am trying to get my head around.

@Connor Kelly The source of down payment for a rental mortgage can be either own savings or from borrowed sources such as a secured or unsecured line of credit.

Treasury Secretary Steven Mnuchin warned Republican senators Tuesday that the coronavirus pandemic could drive up US unemployment to 20%, a Republican Senate source told CNN.Mnuchin's comments came as he urged Republican senators to act on economic stimulus measures totaling $1 trillion designed to avert that kind of worst case scenario.In the same meeting, Mnuchin also said he is concerned the economic ramifications of the coronavirus pandemic could be worse than the 2008 financial crisis, the source said.Mnuchin's comments, which were first reported by Bloomberg News, come amid a rising sense of urgency at the White House and on Capitol Hill to confront the increasingly serious threat of the coronavirus pandemic — on both the public health and economic fronts.

We currently have 11 units, excellent tenants and most of them are losing sources of income.

Like many landlords, monthly rent is a significant source of my income. 

As a tip, I like to add a list of sources/assumptions for the data I put in an analysis.

Just sharing what I am hearing from the most reputable source I have.

(A) providing paid sick leave to employees unable to work due to the direct effect of the COVID–19;(B) maintaining payroll to retain employees during business disruptions or substantial slowdowns;(C) meeting increased costs to obtain materials unavailable from the applicant’s original source due to interrupted supply chains;(D) making rent or mortgage payments; and(E) repaying obligations that cannot be met due to revenue losses."

I've been sorting through auction.com to source online auction deals.

Some banks are tapped out and needing to draw funds from outside sources.