Yea, sounds like you want to take your 50k (I'm going to assume you got it illegally, however I could be wrong) get a "fixer upper" house and use illegal money to fix it then sell it. So technically you aren't laundering anything. You are trying to spend 50k worth of drug money to then use more drug money to fix a house up (that you used FIFTY THOUSAND DOLLARS of DRUG MONEY to buy). Then you are going to sell that house, and now you have a whole house worth of CLEAN money that you can now spend and tell the IRS to fuck off anytime they come asking about your brand new ferrari parked next to your lambo that is sitting outside of your shack you built with cardboard boxes in the middle of an intersection in New York City. Oh and you say you are 18 too!!
Pretty awesome plan, let me see if I can come up with any potential problems that you could try and avoid....
Hmmm this is tough, I'm going to take the role of IRS advocate. Its similar to being a Devil's advocate but instead of trying to counter you at every turn, I'll say what the IRS would say if you went through with this venture.
Scenario 1 ____________________________________________
IRS: Why hello there Mr. 18 year old who put down 50k for a house, we were just curious, its not a big deal or anything but... where did you happen across that money? Gift from mom? Did a couple of odd jobs around the neighbor hood?
18yearOldwith50ktoSpend: Oh... yea about that... so you see I have this thing where I sell illegal drugs or something else that I have no real records of and none of this money is legitimate, I'm just trying to buy a fixer upper house so I can use drug money to fix it and sell it for clean money that I can use to buy my ferraris and lambos when I get mad stax of cash.
IRS: That is super illegal and we're arresting you now
18yearOldwith50ktoSpend: Thanks man, you're the best!! =D
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Scenario 2___________________________________________
18yearOldwith50ktoSpend: Jail sucks, I should've tried laundering money first, until I had enough clean cash to put down on a house that I could THEN use illegal drug money to fix up because there will be LITTLE TO NO PAPER TRAIL to tie me to the contractors that did all the work since I could pay them with illegal cash no questions asked. But I made a pretty stupid decision trying to use 50k cash that I can't prove the legitimacy of. Oh well, better wait till I'm out of jail to try again!!
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See the joke is that there is no scenario two, as you are in jail for trying to cut too many corners. The more you try to get away with, the harder people are going to work to stop you.
Nobody cares what you do as long as they get what they want. The government, the IRS, they want your money, if you pay taxes, they keep their mouth shut and don't bother you.
You are trying to do just the opposite of what they want. You want money, and lots of it, but you don't want to pay taxes until you cash out. Doesn't work that way.
You need one of two things. Clean money to start, or a way to turn your dirty money clean that doesn't require so much $$ up front. You're gonna have to pay taxes on the 50k you've got to legitimize it so it can be used in large purchases that will attract attention. Or you need someone else who has $$ up front that is legitimate, have them buy the house and become "business partners"
*IMPORTANT*
If you are trying to cheat the system, the system will come after you. Unless you cover your ass.
Brief analogy:
You waving 50k in someone's face at a young age with no way to explain how you got it is like a kid trying to cheat on a test, but instead of covering the answer key while he copies all the answers, he turns in the answer key and calls it his test.
Common sense is there for a reason, you should try using it instead of running from it.