Oh wow, I can't believe I'm going to type this but here goes, hope it helps
CRM LOFT ACE
C - Critical engine inop and windmilling (windmilling drag is significant compared to feathered)
R - Most rearward CG (rudder effective arm is reduced)
M - Most unfavorable weight (light weight. Remember your horizontal component of lift and how it opposes your operating engine)
L - Landing gear (as required by manufacturer certification)
O - Operating engine at max takeoff power (and remember this can only occur at sea level in standard conditions
F - Flaps (again as required by manufacturer certification
T- Trim for takeoff (an aircraft not trim for takeoff will require control loads outside of those necessary. Especially in the case of a rudder trim which is an anti-servo tab style.)
A - Airborne and out of ground effect (remember the effect that better performance can have when close to the ground)
C - Cowl Flaps (as required again by manufacturer setting. Especially for those flying a seminole this is required to be open)
E - Eliminate sideslip (max 5 degrees towards good engine)
If you really need more theory explanation behind some of these I would be more than happy to help. I've got a few thousand hours of dual given behind me and I am more than happy to point you at some resources as well.