I've found that to be pretty typical. Our issue when we were looking into rescues was we were automatically denied because we're a military family despite having had our own dogs with no problems. I understand their reasoning but should be a case by case basis. Its possible the rescue may be willing to work with you on the fencing.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Shasta GSD 5/5/10 CGC, ITD, TC
"Dax" Thor z vom Weberhaus CAX, CGC, ETD, HCT, RATI, RATN, TC 3/18/2013
Zena GSD 6/1/03-2/16/2016
Riley GSD/BC 1/10/05-2/1/2013