I can't offer any professional input, but I think you need a very strong warning about working with family. Make sure you lay out the expectations, their responsibility and power, etc. Having an investor adds many layers of trouble by itself, if that investor is family then deeper ties make it hard to interact professionally at times, etc.
Treat this 100% professionally from the start. Draw up contracts, stock reports, everything, anything you can.
Treat this 100% professionally from the start. Draw up contracts, stock reports, everything, anything you can.