You would do well to find a REALTOR who is familiar with the area where you would like to move, and see if they can help you with the process. It is complicated to deal with foreclosures, and you really should do yourself a favor and have a trained and experienced professional guide you through it so you don't suffer any mishaps in the process.
Having said that....
KUDOS to Dunes (below) for all that research you did for this person!!! Terrific job there!!!
Keller Williams Keystone Realty
You might try giving this a look...I see you posted the question in York County Penn. so this first,,
Sheriff's Sales Information/York county site..http://ycwebserver.york-county.org/sheriff/sheriff_sales.html
Basic Information regarding tax sales:
York county site http://www.york-county.org/departments/assessment/taxclaim.htm
This may come in handy...
2010 Real Estate Database and Maps
2010 Tax Rates
Read this Blog on finding public records free/easy... http://www.trulia.com/blog/dunes/2010/01/public_records_find
If you are wanting to Browse Bank or Fed Gov(Hud/VA/Fannie Mae)REOs/Foreclosures then you may wish to check out the Bank and Gov sites created to allow you to do that for free....sites like
http://portal.hud.gov/portal/page/portal/HUD/topics/hud_homes ... http://www.homepath.com/
https://servicing.chase.com/reo/property/FeaturedProperties ... http://www.pasreo.com/pasreo/public/propertySearch.do
All Free, all constantly updated... Check this out...http://www.trulia.com/blog/dunes/2010/01/reo_s_and_gov_prope
Yes there is but it often takes a lot of phone calls and banging on doors or a stop down at the sherifs office. If you are looking for one particular home then do that leg work. If not, realty trac is worth the registration. Or find an Agent like myself who is registered with them.