If you were to breach the severance agreement (for example by suing your former employer despite the severance agreement waiving all claims you had against it), the former employer would be within its rights to stop making severance payments.
You do not get severance if you quit. Nobody is automatically entitled to any severance legally, ever, unless you were hired under a contract such as a 1099 employee and you have severance written into your agreement. Standard W-2 employees usually do not get severance.
Resigning without notice can impact your future employment options if a prospective employer checks your references and is told you quit without notice. Think about it from an employer's perspective: Would you want to hire someone who might leave you hanging? Possible financial repercussions.
Most termination clauses are an agreement between the employer and the employee that in the event the employer elects to dismiss the employee without cause, the employee will only receive what they are entitled to under the Employment Standards Code.
In Brazil, employments are at will, meaning that any party may terminate the employment agreement without cause upon the mandatory prior notice and payment of the severance. It is not necessary to mention any reason for termination, except if it is a termination with cause.
Understanding termination letters The date of termination. The reason for the termination (while not always required, many include it) Any severance benefits or other compensation the employee is entitled to. Instructions for the return of company property. Details regarding the final paycheck and accrued vacation time.
Yes, you can counter a severance package. However, since employers are not legally required to offer them, it is hard to have any leverage for the negotiation unless you have a potential discrimination claim against the employer that acquired your prior company.
Negotiation Leverage: Refusing to sign the agreement can provide leverage for negotiation with your employer. You might be able to negotiate more favorable terms including a better severance package, limiting the scope of non-disclosure, non-disparagement, non-compete and non-solicitation clauses, and more.