Hello. I am a us citizen . If i file i-130 and i-485 for my son who is over 21 and unmarried? My son is in the US on a tourist visa. Can he work?

OK if you're a US citizen and you are sponsoring your child who is unmarried and over the age of 21, then he falls in the F1 preference category per the DOS visa state bulletin board. Currently the priority date that the state department is processing visas for under that category is 2015. So I strongly suggest before you file any documents to sponsor your son, you have a lawyer in your jurisdiction or outside your jurisdiction, review your sons entire case file and make the appropriate determination on how to proceed.