I'm a US citizen. My mom is a European citizen and has been living and working in Sweden for many years. She's getting older (just turned 61) and I've been thinking about getting her a green card and bringing her to permanently stay with me.
The problem is that in leaving that country and becoming a permanent resident here, she will lose about half of her social security from Sweden and some of her independence along with it. I'm wondering how many years she will need to work in U.S. to be eligible for any social security benefits at all. Is there a minimum amount that senior citizens past a certain age will receive no matter how many years they have worked here?