Guys, I'm getting a house tonight and could use some advice

I'm told if I throw some flyers in front of the house letting the people living there know I intend to take it over, I'm cool right? Also I printed out some pamphlets my church recently put out that says the house at this very address is actually my birth-right, so if they try to put up a fuss I can just point out the relevant text. I am planning on going in armed, when can I shoot them if they refuse to leave? I really don't want to shoot kids but if their parents refuse to leave, they are using them as human shields and I can obliterate them, correct?

Thanks for the advice.