Optimum values of all predictors in logistic regression
Theoretically you won't be able to get the value $1$. However, suppose your variable is bounded and you can indepedently set the values of the variables, you can let it be as large as possible.

Look at the coefficients that you obtained. For those coefficients that you obtained, if they are positive, set the value to be as large as possible. For negative coefficients, set the variable to be as small as possible. If the coefficients is zero, any value is fine.