Could you try sleeping her on her tummy? It may not work if she's not used to it and you're trying to put her down for the night, but if she wakes from a sleep and is in that "in between" awake and asleep stage, she may settle easily. At her age I'd imagine her neck/shoulders are strong and she moves her head easily, so tummy sleeping shouldn't be a problem (having said that, many don't like the idea ... so you need to do what you're comfortable with).

I often think chiropracters work wonders on babies ... might be worth a try to see if something is out of alignment and causing your DD issues during sleep.

Otherwise, I'd throw something different at her. Try moving her into her room, to see what happens. Could you feed her before bed, and then get DH to put her down. I'd expect some crying, but to me it sounds like she's seeking out comfort from you. Which is fine, until you don't get any sleep.

Hugs hun. Babies who don't sleep make life very difficult for their mummies. Go easy on yourself xx