Someone appointed a slave as his heir

Someone appointed a slave as his heir

Someone appointed a slave as his heir. Can a slave refuse? Can a slave be made an heir without a freedom leave? Justify the answer.

Additional information:

After payment you will be available a link to the solution of this problem in the file of MS Word. It should be noted that the problem solutions put up for sale were successfully handed over in the period 2009-2019 and could be outdated. However, the general algorithm will always remain true.