Having built the initial product, I know more about it than anyone else on our team and have been there through every stage of development. Our company is growing, and we've thought a lot about hiring a full-time product manager to take over some of what I'm already doing. Curious if there is a certain stage the product should be in before a full-time PM is necessary?
Sadie, I'd like to say that you have already answered your own question. Clearly, you are feeling the pinch of having everything go across your desk. You need to delegate in order to steer your company. If you have the revenue or at least the ability to hire, then do it now. Get your Product Manager going early in the process so that they will be able to develop your breadth and depth while it is still early.
There will be plenty of opinions, but as Chris noted, you don't have to chain down your new Product Manager to a single role. Startups always have plenty of hats to go around. Hire wisely. Hire someone who can fill multiple roles while it is still early, take over what you need to delegate, and grow into a more singular role as your staffing requirements expand.
Reach out to me directly if you wish.. I'd like to learn more about what you are doing. Reme