What Is a Master Broker and How They Sell Third-Party Inventory
A master broker doesn't own the inventory or develop the project. They hold the commercialization contract and let you sell under it without you signing directly with the developer.

A master broker is the intermediary who signs a commercialization contract directly with the developer and, based on that contract, enables other advisors to sell that inventory without each one signing with the developer. They don't own the units or develop the project: they have the access, control the official price, and coordinate closing support. You sell under their umbrella.
If you're an advisor and someone has offered you "access to a development," it's worth understanding the mechanics before bringing your buyer. The value of the model isn't in passing you a catalog — it's in the rules that define who gets paid when the transaction closes.
What Is a Master Broker?
This figure exists for contractual logistics. The developer doesn't want to sign and coordinate with dozens of independent agents; they prefer a single commercialization contract with an intermediary who answers for the price, materials, and closing. That intermediary is the master broker: they concentrate the relationship with the developer and open it to the advisor channel.
What it's not: it's not the inventory owner and not the developer. They don't build, don't own the units, and don't set the price arbitrarily — they pass along the official price the developer sets. Their role is as a bridge with a contract, not as a seller with their own product.
That distinction matters for you because it determines who you have a relationship with. When you sell under a master broker, your counterpart is them, not the developer. Everything you negotiate, register, and collect goes through that relationship.
How Do I Access Inventory I Don't Commercialize Directly?
You access the inventory because the master broker adds you to their commercialization contract, not because you sign with the developer. That's the central mechanism: the master broker already has the agreement with the developer, and through it they give you access to available units, current official prices, and sales conditions the developer authorized.
In practice, that translates into three concrete things:
Inventory and Official Prices. You see what units are available and at what price they sell, with the list the developer recognizes. You sell at the real price, not one you made up.
Materials and Fact Sheets. Renderings, floor plans, technical specifications, payment conditions — the commercial material the developer released, without you having to produce it.
Closing Support. Assistance in coordinating the closing and its documentary part, which is where a deal falls apart if no one supports it.
The part most misunderstood: you don't sign with the developer, you sign with the master broker. Your collaboration agreement is with them. That simplifies your operation — you don't negotiate a contract with each developer — but it also means your commission rules live in that agreement, not in the master contract you don't see. Before bringing a buyer, ask in writing how that agreement recognizes you.
How Do I Get Paid and What Protects My Commission?
You get paid when the transaction you registered in your name closes, and what protects you is the prospect registration, not anyone's goodwill. This is the point that separates a serious model from informal access to a catalog.
The flow, in its clean form, is this. You register your prospect with the master broker before formally presenting them to the development. That registration creates a record that that buyer came through you. When the sale closes, the developer pays the commercialization commission to the master broker — who holds the contract — and from there the portion corresponding to the advisor who brought the transaction is distributed.
What Protects Me From Being Bypassed?
What protects you is the prior prospect registration and written rules that recognize that registration. Without it, an advisor who brings the buyer can be bypassed: someone else claims the transaction, or the buyer comes back through another channel and your work dissolves. The bypass risk is real and is why the model exists with rules, not just access.
That's why prospect registration is the heart of the scheme. A master broker that takes their role seriously registers who brought each buyer, with date, and honors that registration when payment arrives. Before investing time in a development, confirm two things: how your prospect gets registered and what happens if that buyer reappears months later. If there's no clear answer to that, access to inventory isn't buying you protection — it's just lending you a catalog.
On amounts and timelines: the proportion of the commission and the time it's paid depend on the commercial agreement of each development and each master broker. There's no universal figure, and be suspicious of anyone who promises you a fixed number without showing you the distribution scheme in writing.
Master Broker, Shared Commission, and Internal Team: What's the Difference?
The difference is in who assumes the contract with the developer and who carries the risk. All three figures let you participate in a sale that isn't entirely yours, but they distribute responsibility very differently.
Figure
Who Signs With the Developer
Who Assumes Commercial Risk
Your Relationship
Master broker
The master broker holds the commercialization contract
The master broker answers for price, materials, and closing to the developer
You sign with the master broker, not the developer
Shared Commission
Neither one by default: it's a one-off split between advisors on one transaction
Risk is split however the advisors agree for that transaction
Direct agreement between advisors, case by case
Internal Team
The developer (or the commercial firm that employs them)
Assumed by the company employing the advisor; the advisor doesn't carry it
You're an employee or fixed member of that structure
A shared commission is an agreement between two advisors on a specific transaction: one has the deal, the other contributes to the buyer or seller, and they split. There's no contractual structure with the developer behind it — protection depends on word and the document they sign between them for that case.
A master broker is different because there's a commercialization contract involved and a stable scheme of registration and distribution that applies to the entire channel, not an isolated transaction. You gain structure and protection; in exchange, you operate within that master's rules, not yours.
An internal team is the other extreme: you don't assume the contract or risk because you belong to the structure that does, usually in exchange for a different participation. Which suits you depends on how much risk you want to carry and how much autonomy you need — there's no single answer, and anyone telling you one always wins is oversimplifying.
Frequently Asked Questions
What Do I Need for a Master Broker to Enable Me?
The minimum is a collaboration agreement signed with them and meeting the onboarding standard each master requires: identification, tax information to invoice your commission, and in many cases, minimum training or certification in the profession. You don't sign anything with the developer. Confirm that onboarding standard before you start working the development, because it varies from one master to another.
Can I Work With More Than One Master Broker at a Time?
Generally yes, unless one asks you for exclusivity in writing. The point to watch is prospect registration: the same buyer can't be registered by you with two channels leading to the same development, because that's where commission conflict is born. Keep clear with which master you registered each prospect and for what inventory.
What Happens If My Buyer Reappears Months Later Through Another Channel?
It depends on how the prospect registration is written in your agreement with the master broker. A serious scheme keeps a record with date that that buyer came through you and defines how long that registration is protected. Confirm that rule before investing in the development: if the registration doesn't cover reappearance, that's where an advisor can be bypassed.
Work With a Model That Protects Your Transaction
At Propyte we operate as a master broker with written prospect registration and distribution rules, so the advisor who brings the buyer is the one who gets paid. If you're an advisor and want to understand how we enable you to sell inventory you don't commercialize directly, learn about our advisor model and schedule a conversation with our commercial team.
This article is part of our guide How to invest in Mexican real estate.



