Hi Gem
just a personal opinion of mine but I would not use a boarders unless they asked for up to date vaccination certs.
If it were a cattery or kennels and they said you could bring your cats and dogs with no vaccinations.... I would be very concerned.
I have always had to board my pets, cats, rabbits etc... and everytime I have been asked for up to date vaccination details. No exceptions.
As said if I found a place that didnt want them I wouldnt use. We vaccination to protect our pets so why put them at risk by boarding with other pets that have none.. if you get what I mean!
But thats just my thoughts, it will be interesting to see if others have come across same.
Deb x