However, I do worry about the dynamics of having several unrelated individuals under one roof, managing different lifestyles, potential conflicts, and turnover can be challenging.

The issue is building a single small residential unit is some of the most expensive development.Here is a list of why adding a single ADU in single family zoned areas in my CA market is typically a poor RE investment:1) The value added by the ADU addition is often significantly less than the cost of adding the ADU.

There'll be like-minded individuals who's brains you can pick as well:https://www.biggerpockets.com/forums/521/topics/1230348-pint...

Potential for Higher GrowthAs more businesses and individuals move away from congested urban hubs, secondary and tertiary cities often experience significant growth, leading to potential property appreciation.6.

Private money (like true private money) may not be a bad play either, just make sure you trust the individual you're working with. lots of scammers out there. 

I guess my question is, should I narrow my focus to one REI strategy or keep it broad and analyze each opportunity individually?

Most "off market" properties are sent out to huge buyer lists of the most unsophisticated and inexperienced investors and those are the individuals you are beating out on term.Here are real examples of MLS properties I recently purchased:6370 Germantown Avenue: Four unit mix-use with one unit occupied.

Would it be a poor decision? 

Game changer for active investor looking to get more passive investments, busy professional looking to diversify in real estate, individual investor looking to get into commercial or larger assets. 

Hourly rate is a very poor indicator of whether a given service provider is "worth it".