They make their money off of real estate agents, but real estate agents are the worst people to make money off because they are highly unreliable and in and out of the business when the market changes.Their target should be the consumer with higher levels that they can subscribe too for data, since Zillow is linked to the MLS now which makes their data somewhere more reliable.

Should i sell my business to get this money?

ask questions.also, you have to have money to invest. 

Wouldn't it make more sense to raise money privately?

Quote from @Michael Overall: Good day, If an investor has 10 rentals and wanted to over time sell them and put the money tax free from a 1031 toward a large purchase is there a process to do that? 

Explore my personal favorites, Set For Life by Scott Trench or The Total Money Makeover by Dave Ramsey, for invaluable financial insights.3.

So even if you had a buy out agreement negotiated up front and execute that buy out agreement, the bank would still require him to be guarantor unless something drastic changed on your side financially.The best scenario here would be to purchase and rehab the property using a hard money lender or bridge lender.  

How much money do you have for a down payment for a new rental and how much can you borrow? 

The refund part is just to get you get committed to another deal that makes them even more  money than that refund.

@Dallas Morioka why use your own money when you can do seller financing.