Should we contact elder affairs?

My in laws are 80 & 78 and are broke. They have a bit of equity in the house. The house is in pre foreclosure. We found them a great broker. He is working hard to prepare house, even fronting some money to have a few things fixed. My 47 year old sister in law & her 6 year old live there. She does not have a job. She has a sugar daddy that comes in town once or twice a month who pays for her cell, gave her a car & his credit card. My other sister in law also no job came in town to "help" prepare the house & is doing nothing. They also have 3 dogs that they never trained that pee & poop all over the house. The house stinks, no one but my husband is doing anything to help & they just all seem oblivious to the fact they may all end up homeless. The house is huge - 6500 sq feet, there is a lot that needs to be done. (They used to be wealthy, he blew it all away in bad business investments.) We are so stressed out I am making us an appointment with a therapist this week, one who specializes in elder issues I hope. My in laws health is not good & my father in law definitely has some undiagnosed dementia going on. It is hard to accurately express just how nutty & self consumed these people are. It's like we are dealing with the insane. No rationale what so ever. We've tried kindness, compassion, understanding, no results. We tried yelling & anger, no results. We are exhausted. Thanks for any suggestions.