I can get all my historic accounting records into any of the PTA tools, but then I'm stuck without standard processes for creating invoices, doing deposits, writing off bad debts, depreciation, loan repayments, recurring payments, etc. etc.

All those require standard entries and processes, which I've yet to find, which means that now I need to become an accountant and write these standard tools.

None of which generates any income and only creates more work for myself.

I absolutely hate my current accounting software, but this is not (yet) a viable option as far as I can tell.

Happy to learn I'm wrong.