Just need a place to vent where somebody may understand

So we have been assisting my MIL with a young foster child for close to a year now. We have expressed interest in her to the case manager and she seemed to be on board with it. Then she went on maternity leave. Another case manager takes over and we were concerned that we were starting all over again. The Friday before Mother's Day My husband calls her and asks if we could take little one on vacation with us. She agrees and then the conversation went along the lines about adoption and he told her we were getting ancy. Case manager said she didn't think she would have it finished but was going to work on the paperwork and have it placed on her supervisor's desk for preadoptive placement by Monday. So we take her on vacation with us excited that I finally get my 10th child placed with us. We had a great week. We started calling her therapists to have therapy moved to our home and my husband called the case manager every day trying to get the letter confirming we were her foster parents now. Midweek we get inspected to keep our foster license and apparently that case manager talked to the one who is in charge of little one and said we have too many kids in our home to take care of and she shouldn't be placed there. We didn't find this out through them but through my MIL who said that the case manager seemed abrupt and aggravated that we had her in our home. Since three case managers have been out each case manager has had over 40 cases per and we just thought they were over busy and haven't had time to send us paperwork. They also recently passed a law right after she was supposedly placed that states no more than 5 children should be placed in a home including bio or adoptive children. I am just frustrated. We run a state-licensed daycare plus homeschool our other 9 children and though there are sometimes that we get frustrated it is our lifestyle. We easily transitioned this past week with having her "home" this week. Just think that with the shortage of foster homes one would think they would be ecstatic that somebody wants to provide a safe and loving environment for her. All my other children are going to be so upset when we have to take her back on Sunday. :grr: :hissy: As I am typing this she is reaching for me and screaming momma. She has never called my MIL that. I would appreciate prayers for favor in this matter. The only thing I can look forward to is that her original case manager is coming off of maternity leave in the next few weeks.