Commercial 107 Ops:
I've written several; all approved. About to resubmit for same airspace due to expiration but will be adding additional UAS.
Hopefully LAANC will mature to the point of handling the bulk of the waivable sections this year (most everything except BVLOS).
Some thoughts on your question, and some responses. There are folks who will help you draft up your waiver (operation or airspace). Some are lawyers, and some are active commercial UAS operators and trainers. You should not be blind to the process, nor taken by surprise by what the waiver language is if someone else is drafting for you. If you utilize the right folks, they will have regular check points with you to share what has been written (iterative process!). Whomever you hire will also need to understand from YOU how your intended operation will take place so they can cover the appropriate criteria, methods, personnel, procedures, etc.. Waivers and COA's are almost all about making your safety case; how you're going to safely operate in the airspace based on what you want waived, or parameters of your COA.
Like Mavic Mac said above, you will want to know the laws, and rules. Any other approach will not enable you to reach your objective. This includes any state or municipal rules & laws. Local jurisdictions don't own the airspace, but can limit or eliminate your launch/recovery options.
Last couple things I'd like to share about waivers/authorization requests is
- do not add anything to your waiver or airspace request that you do not intend to actually do.
- don't be over prescriptive (ex: "I will have a white 3 second flashing anti-collision strobe on top, and a 5 second blue strobe underneath")
- Research the available FAA documentation regarding the overall waiver process as well as detailed instructions for each part that is waivable.
If you'd like, send me a message and I can share a couple of companies/contacts who can help you draft & submit.