Can I overstay my b2 visa period after I applied for an extension while waiting for the uscis desition to issue me another one?

You are legal to remain int eh U.S. while your B-2 extension is pending provided you filed before your I-94 card expired (visa expiration date is...

Now that you are a permanent resident you can make any normal career moves that you want. I don't see a problem at citizenship time especially...

My green card expired 1 year ago, I am 68 years old, on a very limited income and already sent $100. but they want another $450.

you may want to apply for U.S. citizenship and request a waiver. The waiver form is I-912. This can also be sent with the I-90.

Can a 14 years old legal resident file a petition for her mother in Colombia?

no, only a U.SA. citizen child over 21 years of age can petition for her parent.

Does filing 485 early (first week of the month ) have advantage over filing last week?

The earlier you file the sooner you will get your EAD/AP but if the Priority Date is current you can file any time that month.

Need to change my J1 visa to either a F1 or H2B

F-1 is much easier. than the H2B. You likely will need to leave the U.S. with the I-20 to change status.

Can I Travel to India while my H1B petition under COS is in process?

You may travel but you are abandoning the change of status portion of the H-1B unless you currently have an H-1B visa. Once approved you will need...

EAD

1. 6-90 days 2. usually two years if Priority Date is not current; then 1 year 3. Until you are eligible for AC-21 portability. 4. Dependent...

My friend she have case I-130 f3 applied by her mother so she can apply for lottery dv 2016-2017 in next October ? Thanks

It is fine to also apply under the diversity Lottery if your friend qualifies. The timeline to have a current Priority Date in the FB-3 category...

Running out of OPT time and trying to find out other options to survive till I get my H1

There are schools allowing CPT from Day 1 but you need to make sure they are following the SEVIS rules on this. Yes you need to get back into F-1...