@John Warren: Expect you could put together a group of lawyers and get some variation of opinion as to its legality for the unlicensed. 

So there cannot be that much variation in rate. 

InfrastructureMany of Germany’s cities are broken up into districts offering their own differing set of infrastructure variations.

We have our own variations on the East coast.

As far as I know, they never expressly comment on the different variations on wholesaling.

A prospective Lease-to Purchase was lined up to occupy the home and cover the mortgage payments in many variations of this scheme a portion of the kick back money was supposed to "protect the Investor" some of the bolder operators actually marketed this a a second chance opportunity for the cash rich and credit poor (People with income that was "difficult" to document) The rapidly appreciating markets allowed for substantial "equity spreads" the source of the "kick back money." i.e the FMV is 100K the seller has 45K into the property and would be happy with netting 18K profit, the change goes to paying all the closing costs and a gratuity to the buyer.

This can be really tricky because when you start getting bids, you'll have a WIDE variation in the bids.

Since the variations of advertising will be vast on my site it'll be hard for me to tailor my ads to each individual users.

There are some variations of stated loans through several different lenders.

I'd suggest finding one or two of these at your library or bookstore and giving them a read.I'm not trying to dodge your question, but there are a lot of variations on how this goes.You're into commercial loan territory rather than residential.