How expenses are paid.
How the operator of the pass-through is paid.
I imagine this is all covered by handling in and out explicitly (What is done with funds from sold shares, and what happens with proceeds from the pass through). I imagine this should cover all money going through the operator for the pass through. Is there anything I'm missing on that?
How voting on motions is handled.
Good point, I imagine most would have holders vote and pass along majority decision, or with as much granularity as possible.
How dividends are passed through.
See first quote about money in and out.
How the NAV is calculated.
How assets can be added to or removed from the fund.
For a single venture pass through (ie to a single other business or asset on another exchange) I don't think either of these should be an issue. Things do get a lot more complicated for ETFs or funds of course.
Bankrupt remoteness: what if the issuer of the pass-through bankrupted and the creditors claim that they have the right to obtain the underlying asset.
Good point, any idea how to phrase the legalese? Both for this case and general protection of the asset from outside problems of the issuer.