The Jehovah’s Witnesses appear to have achieved a handshake with their BFFs: Jared Kushner, Aby Rosen and LIVWRK. The pricing is roughly $700 million for the Witnesses’ 733,000-square-foot world headquarters at 25-30 Columbia Heights and a 1.1-million-square-foot as-of-right development site at 85 Jay St. The same group purchased 1.2 million square feet in Dumbo Heights for $375 million in 2013 from the Witnesses and are now leasing to such companies as WeWork and Etsy. Tech outfits have been circling the Brooklyn waterfront properties — and the large “Watchtower” on the sign could someday be swapped for a name like “Facebook.”