I am not a CPA, so check with yours first, but I believe you are able to file a forms 3115 and 481a (change of method of accounting) which allow you to claim previous year's depreciation without actually amending previous years tax returns. 

I'm going to be moving out of my parents house soon for college (I'm 23) and I really don't want to rent unless I absolutely have to. 

Be advised that establishing an institutional account for your LLC can take considerably longer than an individual account - Coinbase is running about 4-6 weeks for onboarding institutional accounts currently, as an example.The LLC may choose exchange provided storage, 3rd party cloud/desktop wallets, or hardware wallets. 

Sort of like a mini-episode of Storage Wars.

Note, while the previous agent has provided an opinion of the property, he is not an inspector and the condition may have changed in 18 months.

I have a single family home that's rented out to three college students. 

The previous owner was a noted antique and rare jewel dealer in Oklahoma City.

I'd like to ban indoor smoking, remove some no-op vehicles and organize storage. 

If you sell a property you bought as a primary residence and have lived in for 2 out of the previous 5 years you can sell it and take the 121 exemption gain tax free.   

@Hadar Orkibi very sorry I did not see this post previously or else I would have commented.