Althizmers grandmother lives with us and is on deed.Her son is POA and financial.She is alone all day.Can we remove her from deed and place her in hom

You're right to be concerned about her care.  You might consider contacting a local area agency on aging to request that she be assessed for her needs.  that would be step one.  As for changes in her assets, you might think about that after you make some decisions on her care and where it will occur (in your home or in a memory care facility).  Transfers of her real estate than have a significant impact on the sources of payment for her care so I would strongly recommend that you seek the advice of an estate planning or elder law attorney before you make any changes at all.