Yes, you are a FB-3 third family-based preference. The wait time for the visas to be available is about 10 years for most countries. The good news is that your wife and children get permanent residence at the same time you do. Your father should file for you immediately to get you a priority date, which is your place in line to apply for an immigrant visa. Attached is more detailed information about the process.
Answered on Jun 01st, 2011 at 11:34 AM