@David M.Yes, that's all good perspective to remember. Your vocabulary of worker vs investor makes sense. I guess it's all dependent on the deal and specifics. While I recognize the investor is taking more up-front risk, it would also be true that the distribution of value evens out, and tips the other direction over time (right?). If the deal falls apart earlier in the life of the investment, yes, the capital investor stands to lose much more (and yes--the financial scale of deal matters, as you indicate too).
I'm assuming that the "worker" probably has a little financial contribution for skin in the game (say, 5k of a 50k down payment), is also sourcing the deal, swinging the hammer, and listing/property managing for as long as the property is held. If it's a long-term buy-and-hold, there comes a point when the worker adds more value to the deal than most of the initial down-payment.
I'm not trying to defend a blanket 50-50 assumption on most deals. Especially w first few deals, the sweat-equity partner may only contribute 30% of value, so 30-70 is the arrangement, especially if it's a short-term JV...I think we hear the 50-50 talk from established investors who have built a long-term relationship w investor-partners.
Yes, we could get into the minutiae of tracking the dollar-value the "worker" brings to the table over time, which I guess is the spirit of the "mini-mortgage" approach: Estimate the value of their sourced-deal if wholesaled; set an hourly wage for office-work/time spent renovating; charge a leasing fee for tenant placement and 10% of rent or whatever each month for PM moving forward...
That's doable, BUT it can get tricky fast: in a situation like a refinance-step of a BRRRR, the equity is depleted as part of larger plan led by the "worker"--yes, it may not appraise well--there are risks--but, if successful, the harder-to-calculate value contributed by the worker suddenly yields a large downpayment for the next property. And, of course, there wouldn't be the knowledge or investment without the worker in the first place, so people are always wanting to assign value to these less calculable items (like you, the investor, wants to assign value to the less calculable risks involved).
At some point w complicating factors, and without degrees in actuarial science, most of us throw up our hands and decide it's easier to just split 50-50, 60-40, or whatever, assuming both parties are educated and comfortable with the risks and values over the life of the investment.
I think the difference in the two approaches is that the one you describe is a capital investor who is not much more than a private lender (functions for JVs and flips more clearly), vs a capital investor who is an involved and long-term member-partner in establishing a portfolio together with the worker (managing partner) within an LLC for the life of a long-term investment (or two or three...).
I know we're rehashing an ongoing discussion (I mean it, David M.: yours is a really good reminder), but does anybody also have any experience doing this "mini-mortgage" scheme that Avery Carl depicts as relatively common?