> The client should always include a clause into the contract that the client must hand all work over after closing the partnership.

I think you might have meant that the developer should hand over all source material after the agreement has been fulfilled.

Indeed, thanks.

Yep, just ask for their source code, don't presume that the hosted work is sufficient.

Client should ask, but ideally this will be written into the contract beforehand. I don't mind sharing source code but not for re-use in other projects.

Yeah this is no different than receiving a binary rather than the source, bundled code is close enough for this comparison (though it would be probably easier to unbundle code rather than decompile a binary, it’s still a fair amount of work)