Industrial lease rates are expected to remain low in the first half of this year, but one brokerage predicts they will rise in 2010 when vacancy rates start to come down. Lease rates started moving down in mid-2008 as landlords aggressively offered concessions to entice new tenants. And starting off 2009, the feeling among tenants and landlords is uncertainty, said Dave Dworkin, a research analyst for Grubb & Ellis. Many of the tenants who leased space at the height of the market in 2006 or early 2007 are paying higher rents than what is being offered today, he said.