Now, if you're actually planning to have the DDP and the meals reimbursed, well...I guess that's your ethical dilemma.
NO,

i do not plan on doing that. that is one of the reasons I was asking what others have done.
I guess i need to clarify more, there is one person on our trip (my mother in law) whose meals will not be reimbursed so I just can't give them the recepit for DDP and get all that reimbursed. and then I know all our recepits won't be accurate since we are doing DDP. so it's a little of a dilemma.
Is there a way to get a recepit that shows a detailed list of everything you pay for instead of the package that just says ... "magic you way package with dining ???"
we need something that shows the cost of each persons DDP and then the cost of each night in the room etc.[/QUOTE]
Ah, that makes it a bit more clear now. I'm honestly not sure how that will all work out. Maybe you could call CRO and ask how they'd suggest doing it? What they might be able to do (if your MiL is in a separate room) is divide the package receipt out by the room. I'm not certain that they could do a breakdown by price, though.
In the past, when I've had packages that included some sort of meal, I went to the conference site, printed out the room rate and then the actual cost of dinner to give them a breakdown of what was included in the package. I then explained what the package entailed and didn't claim the per diem for that day.
Definitely a tricky situation considering. I'm wondering if perhaps your husband's travel reimbursement person could shed some light on it.