In all the videos I have watched, he talked about all the up-side of subject-to financing. but the downside is rarely discussed.

My biggest question is -- are the rates higher for "delayed purchase" or would it be the same as a regular purchase?

What would be the biggest challenges or hurdles to making it happen (e.g. infrastructure, safety, government support)?

But I think every significant investor still has their hands in this, just putting more reserves aside than the casual does for various reasons(protect downside, get decent yield, opportunity cost, etc.) 

I really don’t see any upside to the auction plan, only downside. 

As Gino stated, I think the biggest challenge will be financing with negative cashflow.

HOWEVER, you do need to understand the downsides to it.

This might be a workable scenario for me.Lack of experience would not kill this deal for us but it would depend on a few things.Usually the biggest challenge for newer investors is in the amount of equity you have available to infuse into the project.You need to have a cash down payment to secure financing.With 25% Down you would be in a multiple financing offer situation where we're just fighting to get best deal possible and batting off Wholesale Account Execs left and right.

The biggest thing will be showing the upgrades you've made to push ARV. 

That's my biggest concern.