Have the co-op take out a loan for 60% of building value, then charge buyers 20% of value in cash for each unit. 

You can still easily find the 1% rule and positive cash flow and there's amazing appreciation potential.

Whenever rates fall going to cash out refi again my Roger’s park 4 now getting close to 500k total profit off that one deal now. 

So back to being a real estate investor: the only way to be one is to buy a property and create value out of it, whether through finding a below market value house and selling for a profit, or renting and creating cash flow.  

In fact because an IRA kicks off UBIT on leveraged real estate many people opt for private lending until the account has enough to buy real estate in cash if that is their goal. 

.), maybe showing how much equity could be pulled out of which property when, whether the portfolio would still cash flow, etc.

I own 4 two/three flats bought between 2013 and 2020 in Forest Park, Illinois, at low interest rates and prices in 200000's  They cash flow nicely and prices have increased a lot. 

A couple of our cash flowing properties do not yet count towards income because they are not fully seasoned.

Do you collect cash via PayPal/venmo/Zelle and then refund, or use credit card payment process to allow the guest to pay the deposit by credit card?

BTW, there is a lot of angry homeowners receiving lots of calls from investors to buy their homes cash...