Curbed favorite Artisan Lofts, the confusingly-addressed Tribeca building, sold out in early 2011, but it's back in our lives thanks to a lawsuit. Fillmore Real Estate has sued the building's developers for $6 million, alleging that they failed to obtain a permanent certificate of occupancy by the May 2011 deadline and did not make payments to the project's general contractor. You do hate to see that. [Real Deal; previously]