I would still need to subscribe to a streaming service for cable tv, so cost savings wouldnt be much (or a wash), but otherwise it seems like it might be a viable alternative?

Your goal is to build a passive real estate portfolio (we can discuss what passive means to you), so while I don't condone throwing $100k into a deal without even a basic understanding, alternatively doing so will teach you far more lessons than reading a book will.  

To avoid unnecessary liabilities, delaying acceptance or exploring a cash alternative may be the safest financial option.This post does not create a CPA-Client relationship.

I do appreciate that thorough alternative perspective. 

For structuring your business, consider whether you actually need an LLC or if umbrella insurance might be a simpler alternative.

So, you're actually making the argument *against* debt (not for it).I think you mis-understand debt, risk and the alternatives.

My view is there is more protection on a wrap than a sub to and with the right disclosures and underwriting can be an alternative option. 

Think of vehicles like the cyber truck where you need to sign up ahead of time to pre-order and so many people want it that the value increases shortly after they are released.

Alternatively if they all love the deal, that's also likely a good sign.You can get a dog of a property in a crap neighborhood that will yield a 13.6% gross cap (not saying yours is), but that certainly doesn't tell the whole financial picture of how the asset will perform.

Alternatively, your brother could buy your share, which would result in capital gains tax for you on the difference between your share's original cost and its current value.