State laws may negate my response below, for all I know. But here it is.
My name was only on the deed
Based in the information provided in this thread thus far, you alone are liable for 100% of any taxes due on the proceeds. Giving some of those proceeds to other family members doesn't change that. It's considered a gift from you to the family member and you (not the recipient) pays any taxes due on it.
On top of that, if you gift any one individual more than $16K in 2022 ($17K in 2023) then you the giver are required to report the transaction to the IRS on IRS Form 709 - Gift Tax Return. Now you will not pay any additional tax on the gift since it would most likely be well below the lifetime limit, which is something around $11.2M. (Can't recall exact number here.) But you are still required to report it.
The recipient is not required to report anything concerning the gift on their own tax return.
The IRS Form 709 is not filed with your normal tax return. It's completed as a physically separate document and mailed as such to the address identified in the Form 709 instructions. Again, no additional taxes are paid, since you the giver paid tax normal taxes on the income or gain already. It's just a reporting requirement.
