Is it possible to find someones actual street address of of searching an ip address from an email?

Nope. and partial yes. Here is why the big NO: When you look up the IP address it will basically resolve to the internet service provider. This is because even if your router/modem has the IP, that IP is leased to you the ISP and ISP do not expose street addresses for individual IPs. so the closest you can find is where the ISP is located or street name where the HUB / Exchange is at. They will need to get the address by contacting the ISP and to do that you need a court order. (depending on which country) You can get the IP from emails however if someone is using web based client. then the IP will be the server where that website is at. for example if you login to hotmail or gmail or yahoo the FROM ip will be the IP of that website but if you use a desktop client, like Outlook or Thunderbird or Live Mail then it will send send your PC name and the IP with it. however some email services take that off the email header before they deliver it to the sender.

No. They can get the name of the ISP that owns that IP. To get the name associated with the account requires law enforcement to be involved.

If person B works for the FBI, CIA, or NSA, then they probably can. If person B is your average user then no.

No and yes. it depends on a number of if's if that person has been allocated that IP via ripe.net has not asked for their info to be excluded etc. However usually no. People can see where I live as I have regisitered with the correct people my address and own the IP address's I have. This will show up in the correct Internet agencies.

Most of the time i have succeed using http://www.ip2location.com At least i get the state and city name. some times street address. But many people use ip changer to cheat these type of sites. On the right side of that site you can see "live product demo" type the ip in the "ip address" box then click on find location.