Thanks for tips on getting details, although the Mum that might not stay I have her number in my phone (that is how we have been talking), and also address as her DD is having a party in a few weeks time..

I never thought to ask on allergies/medical conditions, so thank you..

I suppose I hadn't really considered it myself as DD gets really clingy and if we go to a 'home' party and there are pets, she freaks out, so leaving her would be very stressful on all involved.