Techstars and Y Combinator (startup Incubators) have both released the various legal documents that they use as a starting point for seed stage financing for the companies they fund.These include Termsheets, Stock Purchase Agreement , Board Consent,Stockholder Consent, Amended and Restated Certificate of Incorporation, Investors’ Rights Agreement, ByLaws, Subscription Agreement and Election Concents.
You can Download the documents from Y Combinator and Download Techstars Legal Documents here.