There is no easy or simple way to locate foreclosure properties. Unfortunately, most of the foreclosure websites contain incomplete, inaccurate, or dated information. The reason for this is they pull their records electronically, and often the information is not reviewed by an actual person. This means that even if a small lien is placed on a property then it may show up on their sites.
There are several other ways you can locate these properties. The first is networking with banks and getting to know the officers that handle REO sales. This is often a time consuming process and will take a commitment to work this kind of business in the long term. You can also check public records via your county assessors office. Depending on where you live and how foreclosure is handled in your area, often times the assessor can give you a list of all properties that have a "Notice of Default" filed on them. This is the first step in the foreclosure process and will point you in the right direction. Lastly, I would advise you to communicate to your client that foreclosures are not always the best properties. Depending on your market you may be able to locate properties that are either in pre-foreclosure, or simply have high days on market and very motivated sellers. If you have a buyer who is just looking for a strong equity position you may want to look into these options as well.