Dads dementia care

Dad is suffering from dementia and is currently residing in a memory care center . He is waiting for VA attendance and care benefits and the sale of his property to stay in this wonderful center. He's a Korean War vet who has been married to his wife for over 66 years . My mother took care of him and did her best but she's 84 and he's 87 and it was just too much . Any help would be appreciated ,Thank you for any help and I know that the Lord will take care of my parents in the twilight of their years . Thank you