This should not bar you from being hired. It is not a serious misdemeanor. Most jobs will overlook misdemeanors when they are considering candidates.
If you mean is there a law that forbids it the answer is no
That is a decision that is entirely up to your prospective employer.
It may be harder for that teacher to be hired, but not impossible.
Hiring guidelines by private industry is up to the judgment of the business itself. That offense is probably considered too minor (in and of itself) to prevent your being hired, however.
That would depend on the crime and how long ago. Any crime against children would be NO
Having a misdemeanor from 28 years ago may not necessarily prevent you from being hired, especially if it was a minor offense and you have demonstrated a solid work history since then. Many employers consider the nature of the offense, how long ago it occurred, and the candidate's overall qualifications. It’s also important to note that some industries may have stricter guidelines regarding criminal records. Being honest and showing personal growth can help mitigate concerns about your past.
No. They do not require the employee to join the union after being hired.
An open case of what kind? Unless you were found not guilty, or the charges were dismissed, any serious or semi-serious criminal or traffic charge against you would probably prevent you from being hired as a law enforcement officer.
The only way to find a knowledgeable answer to this question is to contact the specific agency you are interested in and ask.
This is not a question that can be answered by this site. Whether you are hired or not, is entirely up to any prosepective employer you apply to.
No, it is not legal to be a hitman. Hitmen are hired to commit murder, which is a serious crime punishable by law.
Yes, we require proof of work authorization within 3 days of being hired.