Non-profits and multifamily

[Logan Jamieson]

I see many people on this forum talking about multifamily buy and hold investment strategies to create personal wealth, as well as business set up specifically to generate profits through the same means.
 

Why do Non-profits not focus more on using their donation money to acquire assets that provide passive cash flow?  Non-profits seem to come and go, and are funded mostly by a combination of grants and donations.  Why do more not own real estate as part of their endowment to support their bottom line?  

I have been working on starting a non-profit for the past year and am curious to arrive at the intersection of my love for multi-family ownership and my public service work.  Possibly one can help fund the other?