At a time when home prices nationally are, if anything, showing signs of being too strong, the picture in Baltimore is the opposite. According to CoreLogic, prices in the Baltimore-Columbia-Towson metro area were down 8% in the year ending June, the worst showing of the 100 biggest metro areas. Nationally, prices rose 6.5% in the 12 months ending June, CoreLogic says. What’s driven that is a huge rise in foreclosure sales. Foreclosures — known in the business as real estate owned — accounted for 52% of all transactions in Baltimore in May — dwarfing the national average in the low...