Writing an investment agreement can be done in different formats, so there is no problem using a prefabricated draft agreement online. For example, you can check out our investment agreement templates above and choose the template that suits your needs. Nevertheless, here you will find some tips on how to enter into a formal investment agreement for your business. That`s how it works. There can be a lot of “what ifs” when it comes to investments, and that`s where an investor agreement comes into the business. How many shares does each investor have? How are dividends paid? Who runs the case? These are just some of the questions that need to be answered..