My question involves employment and labor law for the state of: Wisconsin
I recently recieved a check from my previous employer compensating me for unpaid overtime. Short and simple, I was forced to come into work on my days off and not paid for it. They we're considered "mandatory classes" to make it seem like it was not work. I called the Wisconsin Department of Labor and they sent me pamphlets and forms to file a claim against my previous employer. In one of the pamphlets, it said that I legally had to ask for my unpaid overtime, so I did. My old employer sent me a check, which I cashed already. And also a Full Release of All Claims form which she asked me to sign for her records. Here is what it says:
ACKNOWLEDGEMENT AND FULL RELEASE OF ALL CLAIMS
KNOWN ALL BY THESE PRESENTS, that (my name) a single female, for and in consideration of the sum of (the amount she paid me), the receipt whereof is hereby acknowledged, do hereby for myself, my heirs, executors, administrators, succfessors and assigns and any and all other persons, forms, employers, corporations, associations or partnerships release, acquit and forever discharge (business name) of and from any and all claims, actions, causes of actions, demands, rights, damages, costs, wages, and expenses.
It is understood and agreed that this settlement is in full compromise of any claim disputed or not, as to both questions of liability and as to the nature and extent of the claim, and that neither this release, nor the payment pursuant thereto shall be construed as and admission of anhy liability, such being completely denied.
It is further understood and agreed that the undersigned relies wholly upon the undersigned's judgement, belief, and knowledge of the nature, extent, effect, and therefore and is made without reliance upon any statement or representation of the party or parties hereby released or their representatives.
I HAVE READ THIS RELEASE AND UNDERSTAND IT
Dated this ____ Day of ____, 2012
Signed:___________________
(my name)
______________________
(previous employers name)
My question is, is why did they send this to me after she sent the check? And, should I sign it and send it back? I would not need to sue them or file a claim since I already have the money I worked for. Any advice would greatly be appreciated, Thanks!

