Lone Star Funds rounds up troubled companies around the world. The private equity firm doesn't discriminate when it comes to investments, but generally seeks out distressed debt and equity investments in corporations, commercial real estate, residential mortgages and mortgage-related securities, consumer debt, and banks. Since 1995, it has organized more than $24 billion in capital from investors like pension funds, endowments and foundations, governments, funds of funds, and wealthy individuals. Lone Star launched two funds in 2008 worth nearly a combined $10 billion. Lone Star is teaming up with the Portuguese Resolution Fund to buy a controlling stake in struggling Novo Banco