Attorney in my state or employer's?

Most likely Oregon. Certainly there is a strong argument that Oregon law would apply no matter where you bring it.

Should I submit this letter of demand on my own seeing that the evidence has been acknowledged by my employer?

Your overtime claims, as described, appears to be pretty straight forward. The problem that you will have is proving you worked the time if you...

What kind of lawyer do i need

Contact an wage and hour attorney. Some will provide a free consult and take the case on a contingency fee basis is that is what is appropriate.

I would have to see how that worked, but it is highly unlikely that the practice will be allowed. Any attorney you choose to represent you would...

Absolutely not. First, it is doubtful that a change in recording methods can be done at all. But even if it could, it cannot be retroactively...

Is it legal for my employer to take money out of my paycheck due to a stolen item that was under my responsibility?

You have a wrongful deduction claim. In addition to the unpaid wages, you could recover a matching amount of the unpaid wages, or $200 per...

An employer never discussed a wage with you and you work for them for a day how much are there to pay you

You must be paid minimum wage. This is also the most likely result from a suit. Though the minimum wage could be increased through penalties.

Can my employer take my "waiting week" pay at the first of every year?

There are three nearly identical questions. I assume they are the same person or group of employees. If not, then the answer is the same. All...

Can my Oregon employer hold my "waiting week" paycheck every January and pay it back to me that December?

It is irrelevant what they are doing with the money, the problem is that the wages were due on payday. Multiple claims exist for those wages. It...

Can my employer hold my first check of every year and pay it on my final check of the year?

Not in Oregon. All wages must be paid on payday. You could have a minimum wage claim entitling you to 30 days of penalty wages. You could also...