Do you really need only one Niche?

[Adam Sheren]

If you've read any number of books on Real Estate investing advice you undoubtedly have come across the suggestion to focus on one aspect of investing in Real Estate :

SFR rentals

BRRRR

SFR Flips

vacant land flips

Multi-Family

2-4

5+

Mobile Home Parks

development

wholesaling

vacation rentals

and countless others..

Is there anyone out there who, either on their own or with a group of individuals, has tried to attack numerous investing strategies, simultaneously as a business strategy, based on what ever deal comes across their path? I have made money doing almost all of the above (no vacation rentals, or wholesaling) and would like to focus no Multi-Family and mixed use investing/development. My problem (potentially) is that I keep coming across other lucrative opportunities with great returns (short & Long term). I believe with the right individuals in place that this may not be as bad an idea as investing guru's may suggest. What are your thoughts to the Jack of all theory??