As to other mortals, a Realtor/Broker may not be in the clear at the federal level.

As mortals, your partner can get hit by a bus.

Long-term cap gains rates, even if you are evil and earn more than $250k/year are below 20%.  15% for most of  us mortals.  

Check on the specifics as to title requirement, but housing non-profits have advantages that mortals don't. ;)

For the rest of us mortals, there are tons and tons of intangibles I have experienced that advocate buying.  

There are some of us that can put a calculator to each deal and evaluate the internal rate of return and financial ratios, beyound the expectations of mortal man.

And while infant-mortality and childhood attrition rates are much lower than they were some seventy years ago, we still have failed to meet replacement (certainly not domestically). 

You don't want to have different loans coming due where you must go ask for renewals or new loans in much larger amounts to consolidate debt, it can be easier for a lender to say no.Lastly, yes, lastly, another aspect of debt held by mortals is debt concentration, mentioned this a few times lately about that infinite financing with BRRRR, it's not infinite, not with conventional financing.You can reread the above, pick out more detail, but all of this plays on loan concentrations, too much money loaned to one borrower or another side for lenders, too much concentration in the types of loans made.

More brick and mortal buildings go vacant as gyms, offices and restaurants close for good. 

In other words, since many of us here are landlords, deflation is our mortal enemy.