is it enough to carry you into your next projects while maintaining enough access to keep your current real estate operating smoothly?

With running this "business" there will be operational input costs.

These documents include your operating agreement/ corporate bylaws, articles of organization, certificate of standing, and the EIN letter. 

The more visible you are, the more likely someone will bring you a deal.At the end of the day, the right real estate team can be the perfect catalyst for your operation.

Landlords mistakenly ASSUME all PMCs offer the exact same services and operate the exact same way, so price is the only differentiator.So, the first question they usually ask a PMC is about fees - instead of asking about services.This also leads them to ASSUME simpler is better when it comes to management contracts.

I would also urge you to make sure you fully understand how they operate , A-Z (from how they make their profit to how many doors they are managing). 

Most people don't know how to use a wood burning fireplace correctly - operating the damper, not closing the damper until the fire is completely out, going to sleep with the fire or coals still burning. 

You could create an operating agreement granting one of you the powers - but it is a fair amount of energy/time/activity for someone to manage and find deals.

If you are a STR operator how do you deal with remitting and paying tax?

If you can come in and operate effectively I think you'll find success rather quickly due to that.BTW - for a property management platform I would highly recommend Buildium.