No this is my policy. I have been doing this on my own for years. I worked for a vet which is how it all started with dogs and cats. Then I switched careers to dog grooming because veterinary services became too heartbreaking. The last dog I took off of Craigslist, (free to a good home... very bad idea to post a dog that way), and he was so ill I did ask a local rescue for help. They were wonderful and I got him all better and adopted him out. But her dog attacked him and the adopter did not feel up to the task of trying to work out the logistics of it all. He was not hurt but he did not want to stay there I could tell. The reason I say that is because he hates to ride in the truck because he gets sick, (or used to we worked that out), and when I came to get him he was so happy to see me! and jumped right in the truck with no urging from me. He rode all the way home with his big ol' paw on my arm. He would not let me NOT touch him. He had two overnighters with the adopter before we gave it a shot and no one saw that coming. The dogs seemed to get along and play well so I feel like it could have been worked out over time but everyone has their threshold of what they can and cannot manage.
Over the years though I have found quite a few dogs good homes and a few have ended up here. This is my last batch though as I just turned 65 and I don't want to have to worry about dogs going in the shelter if something happens to me. As it stands now they all have a place to be if I go before they do but I cannot add anymore.