I work and I have EAD from TPS, now I'm married to a US citizen. I'm planning to to apply for I-130 and I-485 do I need I-864?

Yes, an I-864 is needed from your US Citizen spouse. That should be accompanied by a copy of her birth certificate (if born here), naturalization...

Can i attarch the affidavit of support of sponsor and co-sponsor on same file or should the co-sponsor send his separately

Should actually be on the same filing, unless the co-sponsor documents are in an RFE response.

Thanks team for your help and support. Here is my query, Changing from one H1B VIsa sponsor to other H1B sponsor

Your new employer should do an H-1B transfer.

Stay with approved I-140 and H1 withdrawn

You must find a new H-1B employer and do a transfer before your current one withdraws the H-1B, or else you’d have to do consular processing.

Salary requirement on PERM applies after you get the green card.

I have green card 2 years and I have to renew but my wife ask divorce, can I do the renewal?

You can do 751 w/ a waiver of the joint filing requirement.

How soon my employer must pay me after a time sheet has been submitted. I am on H1 with approved EAD.

You should be paid in accordance with employment agreement (every two weeks for example or whatever your agreement is, in the amount pursuant to...

H-1B Amendment. .

I am planning to apply for my EB1 visa in 2015. However, if it is rejected, will it affect my H1 application next year.

Separate. .

Can I apply for US citizenship if within the last 5 years I spent 2 years outside of the US (Returned every 6 months)?

2.5 in the US out of last 5 is the rule, plus no trip over 6 months per. So you should be fine.