You need to consult with an attorney. Apparently, she is temporarily in the nursing home. That is why she can still keep the house. However, if her whole income and social security is completely paid over to the Medicaid and no money is allowed for the property tax, it is likely that the Medicaid does not know that she has this house.
Also, if she has income tax withheld, hopefully, she is likely to be on pension and not 401(k) type of retirement. 1,100 refund is a relatively large amount to be withheld. I am trying to think how much is her income.
For property tax itself, you may be able to apply for reverse property tax. That is, for seniors with low income, they can apply for not paying property tax until they leave the house and use the proceeds for the sale to pay the property tax. Usually, there is a percentage of interest each year accumulated.
But don't apply for this real estate hold yet. Don't contact your county government yet.
Consult with an attorney first and know all the aspects of the issues first. Consult with a medicaid planning attorney.
Your mother and you may face the possibility to sell the house to pay the whole proceeds to Medicaid if your steps are done correctly.
Please feel free to follow up.
Fiona Chen, MPA, Ph.D., CPA, ABV, CFF, CITP