It appears that many leaders out there are struggling when it comes to dealing with tricky players.  Most families will have 1 or even 2 players who are a bit self righteous and unruly, so i propose this thread to offer tips especially to new leaders on methods of dealing with this.

BOR:
Beginning of the round is as some would say the most important time to get your family together in terms or organisation, communication and building a strong foundation for the round ahead (roles, building, theme)  However there is a problem with some players who are "randarounds"  they just random around and do nothing.  For example Iamsmart/Smartz.  he is a randaround and will do nothing but sit in your family and take up a vital spot. 
If a player is not responsive and not building then they should be removed immediately.  this can be done after the first 48 hours of the round by marking the player inactive and destroying his home planet.

Another bor issue is the fam bank issue of overpowering family members.  remember family bank is 1 of many systems used in ic and is not a regulation.  If a player decides to play SS or does not wish to be part of a family bank system, then it is their choice and they shouldn't recieve aggrovation for their choice.  later in the round they may change their mind. Many examples i have seen leaders mark SS players rogue, send insults, ask them to leave.  this is NOT proper conduct.

The hardest situation is a responsive but abusive player at the bor.  someone who is trying to force impressions, is out right refusing to contribute, is being abusive to fellow players, threatening behaviour.  A few key things to remember in dealing with these players:
- do not lose your temper with them, take it from personal experience,  these types of players thrive of your responses,  keep your response calm and short, and they will have no angle to fight from.
- keep records,  record everything they say, every message they send,  and post them in your forum.  show the family that this player is bad news and deserves no respect. 
- do not give second chances.  if suddenly this player has a change of heart and says they will be nice, do not make the mistake of trusting them.  deal with the problem when it is fresh, and do NOT jeopardise your future round.  players like this will leave destruction.  why lose 3 members and 500 planets for 1 immature player?

as soon as the signs are clear about this players intentions, mark them rogue.  this prevents opps/attacks.  keep your forums more private and remove them when possible.  They might build lasers on hp,  they might threaten to share information.  again, do not take the bait.  once marked rogue do NOT communicate with the player again.  a family can easily outgrow 1 rogue and they can be easily dealt with. 

Take pride in your family, players should feel they are treated fairly and consistently and everyone should be honoured to play with each other,  do not settle for players who abuse their right to be there.

--------

Other issues

players fighting?  a tough one for a leader who does not want to see players delete, or go inactive, so what do you do...
2 players are fighting because of a mix up in exploration...the best way to deal with any fam fights is to get the players involved together, talk about what has happened.. explain how the situation could of been avoided.  But do not choose 1 side over the other.  experience vs inexperience has no winner.  especially when experienced players still make mistakes (points to himself).  defuse the situation best you can.  if that fails and they are still arguing and causing a bad atmosphere, then you have to step up a level and tell them that they either ignore each other, or they can both lose the support of the fam.  A shut out is an effective method, which is not used.  you take away everything that a player is given.,  advice, resources, communication, information and that player is isolated until they work out problems.

-------------
aggresion towards leaders is another major problem, as many show a lack of respect to authority.  the leader is boss and therefore needs to be incharge.  dont be soft or players will take advantage.  if a player is heckling your position, again, post the conversations in the forum,  remain kind, and calm and let the player know, you are incharge, be diplomatic and discuss the players attitude with others and share opinions.  If the player continues, do not throw a tantrum and give up your leadership dont use the phrase "if you think you can do it better"  dont compromise your role and just mark that player rogue.  and back it up in your forum with all the evidence.  then the players has 2 choices, he comes to you and apologises.  or he deletes.  in which both cases you are better off.  often the worst of the bad eggs you can identify and deal with early, and later on in the round you may get a few conflicts, but very few should result in a player deleting. 

dont forget the worst players are intentionally out to screw up your round.  they wont wait until mid way through to start causing trouble.
------------
call players bluffs all the time,  if someone is sad enough to say "ill just delete then"  tell them to go ahead.  if thats their style, they dont deserve to play in ur fam.  dont feel you have to live on edge with people.
--------------
if your family member attacks another family member intentionally.  this player should be removed.
bit rushed ! but please feel free to add to this.