This amounts to lost opportunity because if you had purchased RE, at the closing it can start producing return. 5) ADUs detract from the existing structure whether this is privacy, a garage, or just yard space. 6) this is related to number 1, but there are many more buyers looking to purchase homes for their family than there are RE investors looking to purchase small unit count properties.

I want to invest it wisely so that a part of it is used for my living expenses and the remainder invested in RE producing cash flow and appreciating over time.

Real estate takes time and scale to produce reliable cash flow.

Perhaps shadow a top producer in your office, After that stability and you have a nest egg.

these can produce good returns but best chance for success is for those that have experience in this area (I am a partner on an effort adding 8 ADUs, but it is not performing to the initial underwriting (underperforming) and it is an experienced team).good luck I get it, but not everyone has the opportunity of scale and building multiple units.

The marketer (guru) severely understates the amount of capital, time, and knowledge needed to produce successful results.And the above mentioned are the BEST case; not even mentioning the guru strategies that are fraudulent, illegal, unethical, and plain not realistically achievable.  

Join a hugh producing team.

Anything and everything that you can do to show others (and prove to them) that you have a talent for selecting properties and producing actual results.If you do that, people will take notice. 

He became a contractor, worked hard, and grew a successful business that produced a lot of money.

If you are using STR, REPS, or self rental with material participation to convert to active or nonpassive income, you do not have to do this if you have passive business invesment that produce passive income that will exceed the loss generated by depreciation.