Hello

A very good place to begin is by reading the books
"Digging Out" and "Buried In Treasures".

Becoming educated in the hoarding condition is really the only way to proceed.
Gives you insight into their thought processes and possible ways to work around or through that.

Getting some therapy for yourself would be very good because coming at a person who hoards with any anger just does not work.

An intervention would probably cause her to completely cut you, your husband and children totally out of her life.

Good luck and best wishes

I'm searching for any advice here. My husband is an only child, and we've been married going on 7 years, and have 3 children. We moved to his hometown, and live 10 min from his parents. His mother would most likely be diagnosed as a shopaholic and a hoarder. He has tried to motivate her to clean the home in the past, by organizing a yard sale, taken time off work to help her clean whole home, and yelled at her about it too. Nothing has worked. Now, we live here and they always come to our home for gatherings. They avoid any situation where we would have to come to their home, and our kids don't even know where they live or what their house looks like.
I'm having trouble dealing with my anger. My husband has pretty much washed his hands of it, and I seem to be the only one this angry by it all. What can I do? Do I stage an intervention? Do I seek my own counseling?