Thank you all for your suggestions and comments. I have another question about immigration and permanent residence in USA. I am US citizen. He said he has permanent residence in USA but needs to renew his visa every few years. I thought permanent residence means one can stay in the USA permanently after receiving permanent residence. Since he has a DUI, may be he is looking for a US citizen to sponsor his visa, I am not sure. So, my question is does permanent residence in the USA mean actually you have to continue renewing every few years? If this is true, I'm befuddled for the reason it is called permanent residence in the USA if one has to renew to remain permanent. In Japan, once one receives permanent residence one does not have to renew. So, does anybody know about immigration laws in the USA? If he is lying to me about his visa, I will definitely dump him.