Reston, VA – March 1, 2012 – (RealEstateRama) — Calkain Companies is a leader in advising its corporate clients in single tenant net lease and portfolio sale-leaseback transactions. Calkain’s team has closed nearly $1 billion in sale-leaseback transactions. The sale-leaseback transaction allows a company to sell corporately owned real estate and simultaneously lease it back under a long-term lease with the buyer of the real estate.