Hi guys, just wanted to share this. If you want quick LP,Exp and money for your sims and the above cheats aren't working, you can just use the Ghost Hunter abuse.
All you need is 1 level 6 Ghost Hunter sim and 4+ others that will ghost hunt as well.
Once a sim reaches lvl 6 ghost hunter, all ghosts are unlocked for other sims as well, no matter their ghost hunting level. This means that it will be easier for you to complete the collection.
When first completed, the collection unlocks the ghost display decor, once done, you can just click "hunt again".
Successive completion of the collection yields 500,000 town value that gives you 5 LP as a reward. Completing each part of the collection also grants you 1000 exp, 1500 exp, 2000 $ and 3 LP accordingly. Each ghost also yields exp and $ the first time you catch them for the new collection. Also, the more sims you get to do this, the faster you can collect ghosts. I'm currently using a total of 10 sims to ghost hunt and I can complete the collection within 6-15 minutes.
Almost forgot, after your 1st sim unlocks ghosts by leveling up, the rest will instead unlock 250exp, 500exp, $750, $10,000 town value and lastly 1 LP as they level up as ghost hunter.
Hope this helps.