Fifteen plugins duct-taped together is not a strategy. When your workflow is unique, a purpose-built plugin is faster, more secure and cheaper to maintain in the long run.
We start by understanding the problem, write a clear specification you sign off on, and then build to WordPress coding standards — with proper capability checks, sanitisation and tests.
Yours to keep
You own the code. It is documented, version-controlled and handed over with everything another developer would need. No lock-in, ever.