Yep..I got that link..then retrokitten found the other addy associated with the PSL and ANSWER from the first link and it was 3334 W LAWRENCE AVE. The Lawrence Avenue addy is the one that appears to have been bought and sold by the City of Chicago many times.
http://theeprovocateur.blogspot.com/2008/07/updated-summary-of-corruption-and.html
Shortly after joining the U.S. Senate and while enjoying a surge in income, Barack Obama bought a $1.65 million restored Georgian mansion in an upscale Chicago neighborhood. To finance the purchase, he secured a $1.32 million loan from Northern Trust in Illinois....
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According to FEC records Senator Obama received extensive campaign support from executives and board members of Northern Trust during both his 2004 Senatorial Campaign and this year’s presidential campaign. In 2003, during his bid for the Senate, William Osborn the Chairman of Northern Trust (and director of the Federal Reserve) contributed $1,000 to Obama’s Senatorial campaign followed up by a maximum contribution to the Senators primary campaign.
During Obama’s Senatorial Campaign he also received numerous contributions from Darrell Jackson, The President and CEO of Northern Trusts Illinois West Region (includes Obama’s residence). In addition Barbara Lumpkin (Senior Vice President of NT), Kelly Welsh (Executive VP and General Counsel of NT), and John Bross (a former Vice President of NT) were healthy contributors to Obama’s Senate Pursuits. The most interesting of the contributions that flowed from these executives into Obama’s campaign coffers occurred on May 5th and 6th of 2005 when Bross and Welsh contributed money on consecutive days. The interesting fact of these contributions are that they occurred 6 months after the Senator took office and just 1 month prior to his closing on his Northern Trust Loan. The donations that May of 2005 stand out because there were relatively few contributions to the Obama coffers in 2005, as a result of his election 6 months earlier...