Im overstay here and my spouse plan to apply for h1b visa

It should not affect your spouse's H-1B visa as long as they complied with all terms of their visa. You should consult with an immigration attorney...

It sounds like the letter came from the National Visa Center, if that is correct, you may have to petition for the USCIS to forward the case to NVC...

325A form "last address out of U.S."

Provide as much information as you can and try to be as accurate as possible.

I'm a Canadian wanting to move to the States.

There are several different options available in your case. If you have the ability to invest in a business, E-2 or EB-5 visas should be discussed...

If Immigrants assets were frozen in South America for prostitution and money laundering, can they travel to USA on Visa.

I agree with my colleague, you can report and CBP can do with that information whatever they choose to, or not choose to.

I 130 approval and future problems with NVC

No, I-130 approval does not by itself mean that there are no other problems. You should discuss consult with a local immigration attorney to handle...

My husbands case status it shows this Case Status: Warrant Issue; Mandatory Injunction Granted

This is not an immigration law question.

Filing N-400 based on marriage to US citizen_ when can I start to file?

You should be able to apply this year. You should have your previous denial and residence history reviewed by an immigration attorney before you file.

Do i really need a joint sponsor to support my spousal visa petition(K-3)?

Your 2014 and 2013 income seems sufficient, based on the information you provide. You should check I-864p to be sure and it also depends on your...

What foreign assets does a non-US citizen have to report to IRS?

This is a tax law queston and should be posted in the tax law section of this forum. A CPA or a tax attorney may be able to help with this.