Who legally owns the result — source code, designs, and documentation — and from what moment: on payment, on delivery, or never, if the contract is silent.
Default copyright law often leaves rights with the author, not the payer. Companies discover this during an acquisition or a vendor change, which is the worst possible moment.
We transfer full rights to the client on payment, state it in the contract rather than leaving it implied, and hand over repositories and infrastructure accounts in the client's own name.