Ok, I found it. Need to add a "=". (...A.CustomNumberForOrdering<=B.CustomNumberForOrdering...)
SELECT [A].CustomNumberForOrdering, CCur([A].[MajorM&IFundTotal]+[A].[BEMARFund]-Sum([B].[TotalPoolRequest])) AS Balance, CCur(Sum([B].[TotalPoolRequest])) AS RunTotal, Count([B].[ProjectID]) AS...