Please use the form below if you would like to register a complaint with our firm. Mendelson Law Firm is a debt collector. This is an attempt to collect a debt by a debt collector and any information obtained will be used for that purpose. Call us at (866) 997-6325 or (901) 763-2500 or fax us at (901) 763-2525 — or fill out the form below to contact us.