I proceeded to give him a notice on Thursday saying this is a warning and is the only and final notice, stating that he didn’t have permission from homeowner to park on the driveway and if it happens again, the vehicle would be towed in vehicle owner’s expenses.

I'm also interested in general knowledge of the multifamily development process(which loan vehicles may be best, which pitfalls to avoid, etc.).

There is always risk... but I’m tired of leaving my money in a savings account earning no interest.

My neighbor at a house I recently sold wanted me to cut down a tree that he felt was a danger to his property, conveniently after I called the cops on him for repeatedly parking in my driveway and refusing to move his vehicles... 

Hi, This is my first post so if it's answered elsewhere let me know.Is there a good reason to boot tenants vehicles with no warning for minor violations?

Ideally, you'd want to invest passively with your retirement account, couple examples will be owning a rental property or doing private lending.Based on the above it would be best to do the wholesaling outside of a tax-deferred vehicle, but use profits from this activity to contribute into truly self-directed Solo 401k.

Buy the best running vehicle you can.

You might even know which owners are sick and tired of being landlords even if they use a property management company. 

Work overtime, 2nd job, 3rd investment vehicles, etc..   

I think, that while you may be right in your observation, there are more rational explanations...The reason, I would suspect, for the fundamental difference you are sensing goes back to the fundamental difference in the investment vehicle itself.