The financial community has gone through online note some pretty rough times over the last few years and many traditional lenders are finding any excuse they can NOT to make loans. Often they will try to underwrite an A paper deal at B or C paper rates and if the principles will accept this, they make the deal. The terms the lender will offer are often well below those that they historically would have made. This means that the lender will offer say a 10% interest rate where before they would have offered a 6% rate and or offer to finance 70% of a purchase where before they would have financed 90%. You've probably heard this on the news where good solid buyers can't get bank loans for their businesses or to by houses or cars or what have you. The financial markets are tight. However, people still need cash to buy houses, cars and items for their businesses so they have turned to the private marketplace to satisfy their financial needs. Even during the best of times 90% of all financing for the sale of small businesses has been seller carry back funding.

Once these notes or paper has been created the payee (seller typically) receives monthly payments including principal and interest on the amount they financed for the buyer or payor. Since these note holders are private individuals and not financial institutions there is a limit to how much of their capital they can have tied up in these financial instruments. They often need to free up this cash and sell the notes so they can do other deals or buy other equipment or cars or houses etc. They need a buyer to pay them the cash balance of the amounts still owed them or as close to this balance as possible. Typically these buyers of this paper demand a higher yield on their investment than the institutional financial companies demand.