I was charged with CA PC P273.5. i served 2 years in prison. Is there a way to have it downgraded to a misdemeanor?

No. Prison time precludes the possibility.

If my bail was revoked due to non payment if i surrender what is the chance i can bail out again?

Your problem is with the bondsman, not the court. Make nice and hope for re-instatement.

I have sentenced to 60 days of jail time in Los Angeles. They are all misdemeanors. What will be actual jail time in LA?

I am guessing 30 days, but facts might make it shorter.

Does a search warrant have to be served the same day as it it signed and can it be changed by crossing out & remarking with pen

Search warrants are not person specific and generally must be executed within 10 days.

Probably, but it depends on the terms of your probation

What form would one use to ask to amend a habeas corpus to include all rights violations not just the one in original filing?

Get counsel. Jailhouse filings are junk.

Is there a new law in California which changes sentencing percentage to 37%? If so, who is.eligible

No, there is not.

Yes. Return to court and request a surrender date.

I just got a misdemeanor for petty theft and a misdemeanor for having a switch blade knife.

Talk to local counsel. If you hire none, a PD will be appointed.

My wife is sentenced 60 days in county jail at Lynwood how long will she do

There is no means by which to give you an exact date with these facts.