Since acquiring 160 Littleton St. in Parsippany, NJ last year, Silverman Group has signed several tenants for nearly 17,000 square feet at the 25,550-square-foot, three-story office building. Among the recent firms to lease space in the building since the beginning of 2011 is RHF (Residential Home Funding). RHF, a mortgage firm, took just over 4,000 square feet. Doug Gaffney, senior managing director with The Schultz Organization, has the exclusive listing for the building, and also represented the tenant in this transaction. Other tenants that leased space in the building this year include Integration International, which took 3,900 square feet and was represented by Kenneth Flynn with Jones Lang LaSalle. Continuum Healthcare took 3,650 square feet, represented by Michael Tesser with Colliers International NNJ. Omnia Financial took 1,400 square feet, represented by Thomas Consiglio with Resource Realty of Northern NJ. And Ameriprise leased 1,700 square feet, with Doug Gaffney representing both sides of that deal as well.