Is it possible to transfer my Iphone4s plan and everything to a Iphone5 that I found?

Note- The iphone 5 is Verizon and didn't have a password
And my iphone is sprint

Why not try to get it to the original owner instead?

Plus with Activation Lock you wouldn't be able to do much + the likelihood of it being tracked & blacklisted by the original owner

Sure. Use iPad Transfer Platinum (suports iPhone, iPad and iPod) http://www.ipad-video-converter.us/ipad-transfer/ to transfer notes from your iPhone 4s to iPhone 5 directly.