If you do some research on the internet, you will find a wealth of information of training her. My 93 pound black Lab is watching as I type.
It does take a lot of time and dedication to train a Lab to be a family dog- I spent hours and hours EVERY day working with this guy- and it requires a huge amount of patience, to repeat the same instructions over and over. He was able to go to work with me most days, and was crate trained from Day One.
Patience, time and consistency are key, and exercise is very important. Everyone in the house has to use the same tactics, or she will be confused. No wrestling to the ground- she thinks that is playtime or punishment, and is not going to cooperate. Sweet-talk her!
, they will do anything for a head skritch!
And, as a responsible pet owner, you need to get her spayed. No debate there. Keep in mind what I said about time and patience- Labs are very smart dogs, and raising one is almost like raising a child. You are smart, and you can do it! Maybe designate one person, and I'm voting for you, to be her master?
Good luck, and after the first 2 years you will have a lifelong friend! Start with the sit/stay sequence, and build up from there.
Sorry for the long post, I have a personal stake in Labs!