I became PR on 22 Sep 2011 through US citizen wife and planning to apply for citizenship around 22 June 2014 (90 days before completion of 3 years). My parents came to US on B2 tourist visa this year and have an with I-94 valid upto 31 Aug 2014. I came to know recently while going through citizenship process that US citizen can sponsor parents as immediate relative while they are in US. However I don’t think my citizenship process will complete before the 3 year period completes in Sep 2014. So I am not sure if there is a possible way to apply for my parents GC while they are in US as their I-94 expires end of August 2014. Please advise.