[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
I am writing to inform you that I intend to pursue legal action in the form of a lawsuit against your company. I have repeatedly attempted to request payments on numerous invoices that I have sent to your company for services I provided over the past year. However, to date I have still not received the payments that are owed to me.
This leaves me no other choice than to pursue legal action. Should you decide to pay in full, thus averting any legal activity, please contact me immediately and remit payment to the address listed on this letter.
If you have questions regarding this impending legal action, please call me at 234-1212. Thank you for your immediate attention to this serious matter.
[Sender's first and last names]