The assignment fee on a marketed deal keeps getting split before anyone asks who actually moved the buyer.

The distinction you are drawing is real and the flat structure does create exactly the friction you are describing.

A few networks have handled this by tracking buyer sourcing at the moment of assignment, before the fee is counted, rather than trying to reconstruct it afterward. The practical version looks something like this: when a buyer is submitted on a deal, the submitting member logs the source in a shared document, one of three categories, shared list (already in the database), member-introduced (a specific member brought this person in after the contract was signed), or external (came through a post, a platform, or a channel nobody assigned to anyone). The log is timestamped and visible to the whole group, so the claim is made in real time, not in a dispute.

On your $22,000 example, a tiered clause might say the shared-list case gets no additional sourcing credit beyond the base marketing pool, because the infrastructure that produced that buyer was collective. The member-introduced case gets a defined sourcing premium, say 10 percent of the fee, paid from the marketing pool, because a specific person did a specific thing. The external case gets the same premium but may also trigger a conversation about whether that channel should become a shared asset.

I have not personally run a group this way, and I cannot tell you whether the legal language holds in your state's wholesaling environment. For the actual contract clause, a real estate attorney familiar with assignment agreements in your market is the right person to draft it and review whether your state's regulations affect how sourcing bonuses can be structured.

The piece most agreements skip is the logging step. Without a contemporaneous record, the tiered clause has no evidence to run on.

Are you currently using any shared tracking system for buyer submissions, or is the group relying on memory and texts when a dispute comes up?

The assumption doing the most work in most network agreements is that attribution is binary: either you sourced the buyer or you did not. Your three-case breakdown is the right frame, and the distinction between a list buyer, a post-contract introduction, and a wholly external buyer does carry meaningfully different justification for the split.

The tiered clause you are describing usually gets structured around one of two mechanisms. The first is a buyer-origin declaration, filed at the time of disposition, before closing, where the member claiming sourcing credit names the buyer, the contact method, and the date of first introduction. The declaration is timestamped and becomes part of the deal record. Disputes then get resolved against that record rather than against memory. The second mechanism is a sourcing multiplier applied to the marketing share. Instead of a flat 20% to "whoever supported marketing," the clause assigns a base rate to list buyers and a higher rate to post-contract introductions, with outside-network buyers at the top. The multiplier logic reflects the real cost to the network: a list buyer required collective infrastructure, a post-contract introduction required individual effort after the contract already existed, and an outside buyer required someone to go beyond the network entirely.

The risk you have not named: the tiered clause creates an incentive to delay the buyer-origin declaration until attribution is most favorable, and in a fast dispo cycle, a two-day window for filing can pass before anyone notices. The clause needs a hard deadline tied to contract execution, not to closing.

Whether your existing agreement can be amended to add this mid-operation, or whether it requires a rewrite with new member signatures, is a question for an attorney who works with partnership or JV agreements in your state.

What does your current agreement say about the timing of dispo decisions relative to split calculations, and is there any existing mechanism for members to contest attribution before the fee is distributed?