How can my uncle get a green card?

I agree with my colleague. Catholic Charities may be able to help

Is SSN mandatory for EAD application or i94 will do.is there any way to expedite EAD processing since i already have a job offe

no

I lost my green card...

It takes about 4 months dependign where you live. As a permanent resident oyu should report changes of address

A friend of mine got married under the impression that her husband would be able to help her adjust her immigration status

I agree with my colleagues

I am about to be a citizen in less than 4 weeks and my moms visa is going to expire in 2 weeks can i still process her green car

i would wait until she is a citizen. Filing as a PR does not allow her ot be in the USA while her application is pending

Probably. It depends on the databases they check

Can a State sue for a writ of mandamus to compel the federal government to enforce immigration laws?

No probably not. Have you seen the recent Supreme Court decision?

Is company name mandatory in Newspaper Job Advertisement requirements for Employment Based Green Card?

I agree with my colleague. the Department of Labor has specific regulations to follow and specific information to be included in the job ad...

Can i send my parents an invitation letter when am out of status?

You being out of status would be counted against them and their visas probably denied

Regarding govt welfare when still the permanent resident process is on the way

i agree with my colleague