Feedback Wanted on Seller-Financing Matchmaking Idea

I’ve been thinking about a potential real estate side hustle and wanted to get some feedback from experienced investors here. The concept revolves around the current high mortgage rate environment and the gap it’s creating for buyers and sellers.

The idea:

Many buyers are priced out of traditional financing because mortgage rates are high (6–7%+), even for qualified buyers. Some sellers or investors are willing to carry seller-financed notes at attractive rates (3–4%), but they may not have access to these buyers.

I’d act as a matchmaker:

1. Screen and pre-qualify buyers who want seller financing.
2. Identify sellers willing to carry notes.
3. Connect the two parties and collect a flat fee per successful introduction.

Key points / benefits:

• Buyers get below-market financing they couldn’t get at a bank.
• Sellers can sell at full market price without discounting for cash buyers or conventional mortgage limitations.
• I’d handle screening and matchmaking, reducing friction for both sides.

Challenges I see:

• Buyers may reject properties — how do you structure fees fairly?
• Finding sellers willing to carry long-term notes at low rates.
• Legal/licensing considerations (would operate as a consultant/matchmaker, not taking ownership or holding the note)

Have you seen anyone successfully do this type of seller-financing matchmaking?

Would you pay a flat fee for this service if it saved you time and gave you access to buyers/sellers you couldn’t otherwise find?

Any pitfalls, legal issues, or practical challenges I should be aware of before trying this?

Thanks in advance — looking forward to your insights!