IMO, If someone is still in their prime working career, not retired, it has to be about the money, no one is going to abandon their productive years to do something because they love you and want to see you succeed.

I'm Brittany. 30 years old and working in a college town as an operations manager in video production.

Andrew Zimmermann yes, you can finance a 3-4 unit with this product.

The initial thought was to begin cashing out but we'd be faced with the tax implications - wondering if anyone has any experience with a line of credit type product backed with a portfolio as collateral.

While beginning, a good insurance should suffice if legal protection is utmost importance and as you acquire more property and as you move to conventional and commercial loan product where they loan to the LLC, LLC might be more beneficial. 

Any products offer efficient turnover?  

You begin to depreciate your property when you place it in service for use in your trade or business or for the production of income.

Great product. 

I imagine there has to be a lot of you in the mortgage industry who would love just to try this product out.

You have to think business I offer a product which in this case a place to live and a person to pay the rent.