Well, I don't know that there is a verse that says we have to take them in or not. Of course, Jesus instructed to let the man who would take your coat to have your cloak, too, if one is made to carry a burden of another for a mile to go two, turn the other cheek, etc. Paul said in 1 Corinthians 6, speaking of Christians who wrong one another, to suffer the wrong and be defrauded rather than take the issue to unbelievers to determine. Then, there is the admonition to forgive your enemy 70 x 7 times in a day. And, Paul's statement in 1 Cor. 9 that he would not insist upon his rights as a believer.
You are exhorted, in the law of love, to simply be as though you had nothing to lose. More specifically, Paul says in 1 Cor. 7 "Let those who ... buy [live] as though they had no goods and those who deal with the worlds as though they had no dealings with it."
All of which is true UNLESS God has a wonderful plan for your life and wants you to be a success in the world, etc., as so many actually believe to the point they make up bible verses that don't exist and challenge you to find it when they can't put their finger on it.