The theme is that real estate investing is a vehicle that can help a person get that wealth in a matter of a few years.  

To not do so is to not understand real estate investing.If you do not wish to reinvest your dead equity in more properties pull it out and invest in a income fund or REIT, practically any other investment vehicle will return better earnings than todays mortgage rates.

I have seen some where you can’t have any unrelated individuals rent, can only rent out once a year, can’t have Commercial vehicles, limit the number of rentals or they only give out so many “rental certificates “, high app fees for them to approve, the list goes on and on.... perform your due diligence 

FHA will not insure a Mortgage if it is determined that the transaction was designed to use FHA mortgage insurance as a vehicle for obtaining Investment Properties, even if the Property to be insured will be the only one owned using FHA mortgage insurance.”What are the exceptions for the “single property” rule?

On top of that there is a large overhead of tools, insurance, phones, computers, employee benefits, vehicles, tools, office space etc...On the other hand we have someone who is simply purchasing a property & paying above company to operate it for them.

., a vehicle) he can sell?  

(Cash, Securities, Artworks, Furs, Sports Equipment, Vehicles, etc.)

Once I learned that end I saved a lot of money from needing to pay a technician to replace exhaust fan motors of relays.You can learn how to do roofs by reading the wrapping paper on any bundle of shingles, or you might be able to find an article called "your roof, for heaven's sake" which was published about 25 years ago by a California property owners' association.

However I view those as short term vehicles to raise funds for REI.

@Christy Miller, as for her 2017 bmw haven't you ever test driven a vehicle?