She does have a condo to sell. Can I sell it and put it in my name only even though the will says I can have it when she passes? Both our names are on it but can I sell it and put it in my name only? If my mother runs out of money can the county or state know I have the money from the sale of the condo?
Consult an elder law specialist for an approach that is less fraudulent.
Theft is "taking what belongs to another with the intention permanently to deprive him of his property." You may feel that you are only anticipating a bequest, but the fact is that you are putting this money, which belongs to your mother, out of her reach when she may yet require it for her own needs.
So don't even think about it. Sell the condo, divide the proceeds as is correct, and put your mother's money into safe-keeping for her possible use throughout her lifetime.
The implication, by the way, is further that you are intending to keep your mother's money and place the burden of paying for her care on local or state taxpayers... but as I'm sure you won't do that, let it pass.
Just do it correctly and buy her out, using her share to pay for her care.
What you want to do is considered fraud and you could endanger your mom's care by pulling a stunt like this.