Trying to be prepared before presenting my idea.

Hey guys, Looking for some direction / mentorship

I recently came up with an idea that has .. “passed the vibe check” … with certain people.

I’ve created a full outline for the app as well as an entire business outline of how we would be profitable and ran in the future.

My problem is I don’t know what the next step is. Do I start reaching out to investors before having the app development started? I was told I don’t need a patent for the idea necessarily but are there licenses / other things needed before reaching out to someone with my idea?

In short the app streams live feed video that users would be able to access, rewind and record. This idea has been applied in other areas however im looking to apply it to something new.

Any feedback is good, thanks.