There are four basic forms. ā sole proprietorship, partnership, limited liability company, and corporation.Prior to the start of work under this Contract, workers compensation coverage shall be provided for all employees of CONTRACTOR and employees of any. A new affidavit must be filled out each year. Developer will indemnify, defend (at its sole expense), and hold harmless the. Using the information provided on Form SS-4 establish the account: As a sole proprietor with no filing requirements. Add "HCSR" to the primary name line.