Negotiate Multiple Aspects: Don't just focus on salary. I propose that we take another look at the salary you offered me in order for you to better take into account my skills, education, and experience.A counter offer letter is a physical letter or email candidates send to an employer when they want to negotiate the terms of a job offer given to them. Once you have signed the contract, any further discussion of compensation is not negotiation, it is asking for a raise. Accepting the Offer. Verbally confirm your acceptance of the offer and follow up with a written confirmation reiterating salary, start date, and position title. You've received a job offer. Congratulations! Now it's time to evaluate the offer and negotiate for the salary you want. Offer letters are not required in Massachusetts, but many employers like to make a formal offer of employment through an offer letter. Once you're all done negotiating and you're happy with the terms of employment, then you should write a formal job offer acceptance email or letter.