NEED to sell vs WANT to sell leads?

[Richard Rodriguez]

We all know motivated sellers can be found from any lead source but I'd like to know what lead source most of these motivated sellers would be found in. There is (obviously) a distinct and profound factor of leads that NEED to sell vs WANT to sell. What lead source would contain these leads?

I'm thinking the following:

1) Foreclosure Leads (either they catch their mortgage up or they WILL lose their house)

2) Tax Deed Auction Leads (either they catch their taxes up or they WILL lose their house)

Thanks in advance!