Veterans will be able to borrow up to a possible maximum of $625,500 in some high-cost areas to purchase or refinance a single-family house under the Department of Veterans Affairs’ loan limits for 2012. The amount of mortgage a veteran could qualify for would depend on the median county price and the VA’s new method for calculating loan limits on a county-by-county basis. In Hawaii, Guam, Alaska and the Virgin Islands, limits will range from $625,500 to as much $938,250, the agency said. A list of VA county loan limits has been posted on the agency’s web site. The VA does not have a maximum loan limit...