MWH: I'm not even in the US, but I've successfully been in business for the past 40 years. Please ignore me if my comments are unwelcome, but I thought you might find some brief feedback of help.
Could I suggest that you're a bit more specific? As I'm sure you'll agree if you've previously owned a video production company, it's not the drone piloting skills that are primarily important but rather the filming skills - not least composition, exposure, and cinematography techniques. These need to be second nature if you're also flying. Or, as you're looking to get an
Inspire 2, are you planning to do the filming whilst a business partner just does the flying (both using separate controllers)?
And what about the crucial matter of editing, including music selection and voice-over audio? Is that your area of expertise?
The skills/experience needed to "build a business" are very different from the skills of a drone pilot. I would clearly separate these two sets, instead of bundling them together as if they automatically come as one package (which they rarely do). Marketing, for example, is a million miles away from using a RC.
I would also suggest you rethink having a
P4P and a
Mavic 2 Pro. Why not just go ahead with the
Inspire 2 as this would be the obvious upgrade to the
P4P you already have?
As you've mentioned that you previously owned the video production company, could I also suggest you expand on this a bit - especially why this is in "the past". If I was possibly interested, I'd be thinking "What went wrong?" when the reality for you moving on might be something different.
An alternative way forward to looking for a business partner at this very early stage would be to employ a recent film graduate. You could offer a percentage of each job as an incentive, rather than in the fledgling business as a whole. Such individuals should already have a basic understanding of film making. Learning to fly a drone is the easy bit.
More generally, taking on a business partner early on needs careful thought. I've seen this cause small businesses a huge headache and worse. Assuming it's a stranger, is this really the best way forward? What happens if/when it doesn't work out between you? Does the other person still retain his/her percentage in the business as a sleeping/inactive partner? (Know your legal stuff.)
All the best.