One fashion brand that I found to be tall girl friendly is Tart. I started noticing that the length of their maxi dresses were extra long ranging anywhere from 60 inches to 68 inches shoulder to hem. The extra long maxi dress is ideal for us leggy ladies.
I fell in love with the print of the Yasna Maxi dress. The beautiful black and white print dress features a plunging neckline and is contrasted by a mahogany brown belt. I paired the dress with brown Tory Burch Miller Sandals (which go up to size 13!)
While the dress is sold out you can find a similar look here and here and here.
To find your perfect length tall maxi dress you can use this handy Maxi Dress Length Calculator I created.