Yes. You are the aunt of your sister's children and anyone you marry is their uncle.
Yes. Your sister-in-law's husband is your brother.
Yes, the husband of your wife's niece is a remote relative who might be described as a nephew-in-law.
No.
Yes, your husband is considered to be your closest relative.
a cow
Yes. You are related to your husband by marriage. He is your spouse.
== ==
Yes, most people consider a son-in-law, the husband of a daughter, to be related to them. That is why, at or just after weddings, a son-in-law may be "welcomed to the family."
Yes, you can still claim your husband as a dependent on your taxes if he meets the criteria for a qualifying relative. However, if he is serving time in prison, he may not meet the residency requirement for being considered a qualifying relative. It is recommended to consult with a tax professional for specific advice in this situation.
Yes, most people consider a son-in-law, the husband of a daughter, to be related to them. That is why, at or just after weddings, a son-in-law may be "welcomed to the family."
Before or after a divorce a step-sister is not considered a legal relative in most jurisdictions.
SHe's your relative by virtue of her sister being married to your brother.
No, the baby is not considered your husbands. (If you are sure that the baby was because of someone else, and not your husband.)
His/her relative, husband or wife need to write and apply to get that
If by "stepson" you mean someone who was legally adopted into the family - yes, they are a legal relative. However, they are NOT considered to be a "blood" relative.