Can I still file for her if we reconcile?will immigration believe the marriage is real?

Assuming the marriage is in good faith and you are a USC, you can petition for her residency.

Can i sponsor my friend give him job in my house

You cannot sponsor your friend under any immigration preference category. For employment related visas, it is best to consult with an attorney for...

Is my brother eligible to apply for I-485?

If he entered legally and has maintained status ever since entry and at the time his visa becomes current then he can adjust status.

It is very difficult to provide an assessment of your chances of approval without actually reviewing your case. Consult with an attorney for guidance.

212(d)(3) waiver processing time

I agree with me colleague that there is no set time for such a decision to be made.

To file a I-130 for spouse overseas and her daughter.to come the states. are there separate application fee's?

You must submit two separate applications and two separate fees given the information you have provided.

Can I get my green card after a divorce from my cuban wife?

No you will not be eligible for adjustment of status if your marriage to your Cuban wife has since been terminated.

IIs there a chance of legalization for my husband if he was voluntarily deported and returned prior to 10 year bar?

It is highly advisable to consult with an attorney given the facts you have provided regarding your husband’s case. Good luck.

Do we have always to travel with the principal applicant or just for the activation trip to the USA?

No your sister can travel alone and without your father subsequent to her initial entry

Travel outside USA while pending i-130?

You may face immigration issues given your pending application for permanent residency. You must establish your nonimmigrant intent upon entry.