It’s one thing to become the proverbial one-stop shop, as Scarinci Hollenbeck LLC has sought to do with a series of recent additions to its real estate department. But the Little Falls-based law firm has also keyed on what it sees as important growth areas in the space. That strategy is now taking shape at Scarinci, whose long-established real estate team has grown to 15 full-time attorneys from nine last summer, adding new expertise in everything from affordable housing and litigation to foreclosures and landlord-tenant disputes in the wake of the pandemic.