Require X-Qualification to Avoid Agent/Brokers with Fake Buyers

[Neil G.]

CROSS-QUALIFICATION Requirement.. In cases where neither a brokers' open nor periodic open houses is feasible, is requiring buyers interested in seeing property to first CROSS QUALIFY with a specified Mortgage Broker (in the MLS)) a good way to screen out the plethora of buyers just 'window shopping' often not even 'really' qualified other than per their own or their agent/broker's word?

And what sort of referral fee would be reasonable to be expected from promoted Mortgage Broker if they end up financing the deal??