Is there a service that can tidy up a persons dwelling, and assist with bathing the elder?

Chech with your AREA AGENCY ON AGING. Just type it into your Google search bar. Then your state and county, and to your specific area's agency. There will becall sorts of options, but probably the best thing to do is to go down to their offices and speak with someone directly. Find out what sort of things are available to her. 99 years old, God Love Her! She may qualify by her income, many different services such as MEALS ON WHEELS, low income home health aides, home assistance with her cleaning and grocery shopping, maybe even someone who will sit with her for company! You never know until you check it out! Good luck with your Mama, still "with it" at 99, good for her!

There are tons of agencies out there geared to assisting the elderly. Does your mother have enough income to pay for help?