I think I need to go back to the seller and ask for more help here, and I want to minimize cost till I have more certainty.

Be prepared for the market to turn.In an emergency, Landlords can delay tax payments for 6-12 months without incurring much of a fee.

Spend some time looking for minimal risk investments in excess of 10% ROI to start.  

I just got a HELOC on my investment portfolio, so I can buy my next building with "cash".I dumped all my operating funds in my HELOC to minimize the interest.Now, I get a wrenching gut feeling that this HELOC can get frozen and I won't be able to buy anything new.Please, give me an advice: what would you do?

This creates a delay by default (even if it is only hours), and another step that could suffer from a glitch/downed service/etc.(2)  I have read stories about how easy it is for a tenant to reverse the transaction after the deposit is made, and this company's policies have made it very difficult and lengthy for a landlord to fight the clawback.When they deposit funds right into my account (as John does, that acct # is in the lease), once the funds clear there is no opportunity to unring that bell. 

Hello Clay, if you want to get a loan on the secondary market there is a 6 month seasoning period unless you do a delayed financing exception which I will not get into here.

States are proposing laws that waive rental payments for several months with minimal or no reimbursement.

The CARES Act introduced this loan on March 27th and some lenders I've spoken to expect there to be a delay between that date and the date they'll actually be able to process the loans. 

JPow's pledge to keep the printer running 24/7 shouldn't have delayed the inevitable.

I definitely will look to minimize my risk on the first and try to use it as a worthwhile learning experience!