no you need >=50 this means 50 or moreYou need to tell Cassidy you won't take her to the airport due to being busy, basically the end choice for her. That unlocks the alternate route since the boss needs to be alive for them. You still need to max out your strength to survive one of the events though.
Oh these event DO max out her lp. This was how I got her ending without dealing with the whole investigation and CEO chain of events.
If you play the gamer path no slave route for you