More of your personal funds would need to be injected into the 'business.'

Most lenders I've worked for/with want the cash injection from the borrower to go in first to protect the lender.

If you find that you are personally having to inject monies into the business (lending to your entity - which is ok), make sure that there is a good paper trail. 

I don't understand the idea that millennials are going to flood the market injecting millions of qualified buyers with bulging pockets into the real estate market. 

I'm currently saving to by my next home but reading through the posts and listening to the pod casts most of what I've seen is flipping a house and gaining a lot of money from that to inject in buying other houses.  

Will you be required to inject capital if they need it to repair roofs / foundations / plumbing / etc. 

This trend will continue as distressed assets in sectors like multifamily seek capital injections to avoid foreclosure or unfavorable sales.Mezzanine debt, typically subordinate to senior debt, offers higher returns to compensate for the increased risk.

When they refinance lenders will force them to inject $$$ into the property.

Transfer from personal acct to LLC has to be booked as additional capital injections into the LLC. 

I would inject that since the target audience is “beginning investors” that it would be hard for seasoned pro’s to give a true assessment, unless the ones that have are actually beginners?