So, we look for a product that will attract those tenants, and we work hard to produce that during a rehab.For us, the financial independence and wealth building aspect of real estate is the primary motivator. 

In my quest of researching i am finding a lot of good deals on people either selling their used stuff at a very good price or people getting rid of brand new stuff that they never used due to not fitting or not liking the look.My dilemma is that most of these things are paid by cash so how do you guys keep a track if you do the same and what records to keep so that if/when the audit comes up, i am able to show proof of it.Thanks in advance

Verify their ownership independently.  

Hello Ben,Short version : find an independent whole of market broker.

If you want to build a small business on top of this long-term plan, by all means, buy some real estate.Disclaimer: I personally hold most of my long-term retirement / 401k type investments in a similar fund and invest heavily outside of this fund in real estate to build a lifestyle business independent of long-term savings earmarked for retirement.

I started listening to podcasts in that space about 1 to 1.5 years ago because I have always been interested in financial independence (not necessarily retire-early). 

I'm 21, a student, I have a consistent work history since I was 18, but not earning much, only ~15k a year, I now have a job earning about 25k/year but it is independent contracting and I deduct quite a bit of that income on my taxes.

I have a business opportunity that I want to invest.The dilemma I have is whether to directly invest from LLC in which case any profits income coming in have to go into the solo 401k retirement account and I won't be able to use the money for anything else.Unless any money needed will have to be taken out as loans in the future to be used.orThe other choice is to trigger a participant loan from the solo401k, in the beginning, to make the investment so that its invested through another business we own that we can be part of the profit distribution and keep it independent of the retirement plan oversight but it will require to start immediate payments back to solo 401k loan.Any thoughts or advise.Also, loan payments back to solo401k what options are available from a time-frequency standpoint.

Most large property managers offer due diligence as a service (unit walkthroughs, plumbing/electrical/roof inspections, and lease audit).

Would appreciate any recommendations for independent property inspector and PM.Cheers,Stanley