Good luck on soldering fine-pitched smt parts. What I would do is set the chip down,
and solder a couple of pads by hand first, in order to get the pins all aligned.
Also, some people swear by just blasting all the pins with solder [manually], and
then using solder wick to draw off the excess solder that's bridging across adjacent
pins. You could use the same method to resolder any bad joints.