Whats are all the ways to get greencard as an unmarried (29) son of Greencard holder parents and what forms they should file ?

They can file an I-130 for you [both parents can and should file for you]. There is a seven year wait for the visa to be available. When your...

You cannot apply for someone else's visitor visa. Your uncle needs to apply. You can send him a letter inviting him.

Hiring under H1-B

If you are no longer an H1b, the employer can file for you next April 1st for an October 1, 2014 start date.

I am a US citizen living in France, what do I do to make my mom a citizen? How long will it take? How much does it costs?

You can file from there, but you will need to have definite and imminent plans to return to the U.S.

My I-130 was approved then denied due to abandonment can I fight this case? My mother has purposely handicapped this process.

Your mother is free to withdraw the visa petition she filed and you cannot get that visa without her approval and very active cooperation.

Is it possible to obtain a visitor visa following expedited removal when attempted to enter under visa waiver?

Sure, but he will need a waiver to be admitted. No doubt he will be questioned about the purpose of his trip to the U.S. and why he tried...

Is it permissible to decide to marry on a b-2 visa if NOT original intention to do so?

There is no violation of your admission to get married in the U.S. If you are in the U.S. and married, you can file for adjustment.

Joint Sponsor for Green Card

Any U.S. citizen or permanent resident alien can be a joint sponsor, there is no limit to the country of origin.

Can I return to the United States?

If you did not turn in the I-94, they may not have recorded your departure. You can certainly try to register for a visa waiver and see what...

How's my situation?

If nothing happens, contact them in 120 days.