I'm not sure how much was this the custom in other countries, but here during the conventions local JWs could offer their homes to those with special needs / who can't afford a hotel, etc.
Many years ago as newly wedded couple we decided to offer our house. We got assigned a middle-aged (around 45) italian guy, who was a bible-study. Fortunately he spoke some of our language, so we understood each other. He was a weird one... he was probably the first time sleeping at someone else's house, he was acting almost as if he was at a hotel. I think he actually expected to be assigned to a hotel, and something got mixed up, because he was quite wealthy, he showed us pictures of his big mansion.
As we found out soon enough this was actually a trip for him to look for a wife. He probably saw the whole "Bible-study" deal as an opportunity to meet nice girls. So he kept continually pestering us to introduce him to a nice JW girl that he could marry. He was starting to get on my nerves, when my neighbours fortunately helped and took him for a big walk around the town, until we relax a bit My MIL even suggested a girl from our congregation, she was a poor orphan struggling to make a living, and this would be a nice opportunity for her. We said no way, we're not pimps, and will most certainly not push a nice girl to that guy's arms.
That was our first and last time we ever offered our home to delegates. Anyone else wants to share his experience?