Embattled commercial real estate lender Capmark Financial may file for Chapter 11 bankruptcy protection this weekend, according to a published report.

The company, which has originated more than $10 billion in loans, suffered a $1.6 billion second quarter loss, which highlighted the troubles of the commercial property sector.

The company, the former commercial real estate arm of GMAC, was renamed in 2006 after it was purchased — at the height of the market — by private equity companies.