richc – good man for re-homing, it can come with some challenges.
The jumping up must not be tolerated. One of my dogs had this problem. You must firmly tell him 'no' and a hand held out palm down horizontally will reinforce the message. Give him no other reaction. Be firm, the 'no' should be short and sharp like a bark.
If he nips as well you must 'bite' him using a hand forming a claw on his neck. In extreme cases hold him on his back. Not hard grip, just pushing your fingers firmly against him for a second. In his head he is being bitten because of bad behaviour.
Attention is the reward they crave. And knowing their place socially. you must be 'top dog'. The dog is happiest when dominated. Make sure he has plenty of exercise, is not left alone for long priods and that you reward good behaviour. Ignore peeing or pooing, if you tell him off you are still rewarding him with your attention.
You want to get him into a calm state of mind, and make this the norm.
Depending on breed you could also challenge him intellectually too.
Good luck!