I am seriously considering joining a late stage start-up as a 25% active partner. They are already generating just under a million dollars per year of revenue. The current owner would like to see us close a partnership deal within 2-4 weeks of me working there. I on the other hand feel I really need 1-3 months of working there to fully understand the business, its potential, get to know my future partner as well as the current small team of 4, before I commit to any long-term partnership agreement and investment. Any suggestions on how to structure a deal that we can all agree on?