Advise Please!!!!?

There is a married couple that we've been friends with for almost 10 years. They wanted to relocate from where they used to live to where we live, and asked us if we would take them in for a little while until they can get jobs and an apartment. I spoke with my husband and he gave it the OK. When they finally arrived they came with 2 HUGE dogs! (I have 2 little dogs in my house). I told them that those dogs had to stay outside. The first night the dogs were rowdy and since it was cold outside I allowed them to bring them into their room under the condition that during the day the dogs will remain outdoors. Well, now I have a "carpet" of dog hair all over my house!! While my hubby and I are working they keep the dogs inside despite of what I told them!! They have been looking for work but so far nothing. I've told them repeatedly to tie the dogs outside but they are oblivoius to my demands. I would hate to evict them from my house...and I don't want to kill their dogs. What should I do?