Remove bolts in these locations:
ok this is the place for all bolt for a fender
the three under the hood, one above top door hinge, one below bottom door hinge, two on very bottom by rocker panel, one where the end of the bumper cover meets the fender (at the wheel well) one or two under bumper cover (that you can only get to when you take off the one from the bumpercover to the fender), one that holds the lower valance on (under your head light) and finally one that is on a bracket that is connected to your core support behind your headlight. you will also have to remove your headlight and turn signal (which you no longer have).
but by the looks of your picture the one at the bumpercover and the fender has been ripped off as well (it looks) you will have some problems getting to some other ones with out a good size hammer.
with a 10mm socket and about 10mins you can take a fender that is not too damaged off but by the looks of that one it may take little longer (cause of damage where some bolts are).
hope this helps
How do u replace the front axel on a 1997 nissan altima
The 2005 Nissan Altima has 53 in. of front hip room.
The 2007 Nissan Altima has 42.2 in. of front leg room.
The 2009 Nissan Altima has 55.7 in. of front shoulder room.
The 2011 Nissan Altima has 56.8 in. of front hip room.
The 2014 Nissan Altima has 54.0 in. of front hip room.
The 2002 Nissan Altima has 56.7 in. of front shoulder room.
The 2005 Nissan Altima has 56.3 in. of front shoulder room.
The 2002 Nissan Altima has 53 in. of front hip room.
The 2008 Nissan Altima has 56.8 in. of front hip room.
The 2010 Nissan Altima has 40.6 in. of front head room.
The 2011 Nissan Altima has 40.6 in. of front head room.