Yes. Widows who are members of the Church of Jesus Christ of Latter-day Saints (the "Mormon" church) are welcome to remarry. However, if they were previously sealed to their deceased spouse they are encouraged to marry for time-only and not be eternally sealed in the Temple to their second husband. In these cases, time-only sealings are available in the Temple.
Widowers (men whos wives have died) may be eternally sealed in the temple when they are remarried. The Doctrine and Covenants explains that men may be sealed to multiple women, but women should only be sealed to one man.
Because he have to protect them
Of course she can. Widows marry all the time, as do widowers.
no. because he is deceased
No, Mormons marry ONLY Mormons
If they want to, yes.
only id he had power of attorney for after he was deceased
no, but impossible as well, unless she plans dying soon to join you
I am a policemans widow will I loose my widows pension if i re marry
"Is it legal for a man in Scotland to marry his widow's sister?" His widows sister surely mean he's dead or his widow wouldn't be his widow!!, However if he had faked his death so he could then run off with and then marry his widows sister then this would be bigamy which is illegal in UK law.
Yes, a Mormon can marry a divorcee. You should probably consult your Bishop or Branch President if there was a temple sealing involved though, just to make sure everything is cool beforehand.
No, if you are a true believer of the Catholic faith, it is important to you to marry a Catholic, so that your marriage can be sanctified the the Church, and so that your children can grow up as Catholics. Likewise, if your intended is a true believer of the Mormon faith, it is important for him or her to marry a Mormon, so that his or her marriage can be sealed in the temple, and so that his or her children can be born in the covenant.However, if neither of you place this kind of value on your respective religions then there is no problem at all.
Except that he has to be dead to have a widow, it might be legal.(see related question)