If you take a carried interest in projects for referrals you start to collapse more into the RIA regime where fiduciary responsibilities kick in.  

Higher borrower interest rate, higher inflation, stock market collapse, and a disaster similar to a 911. 

If your tenant isn’t getting along with their neighbor it’s much better when that person isn’t  also your tenant like MFRWhen one of your tenant’s water damage wrecks 2-3-4 of your other properties, also a MFR “feature” Much more favorable downpayment and rates if you occupy for a year first then convert to rental.During the last “Great Recession” I heard stories of MFR people losing their Las Vegas properties as rents collapsed or vacancy hit 50%.

For example: the floor in my rental house collapsed last week, so I had to assemble my four man floor crew to fix it and now that it's fixed they returned to their full time jobs.

The roof was leaking in multiple areas, the ceilings had collapsed, HVAC non functional, plumbing non functional.

That scenario would lead to the collapse of the economy and massive capital flight.

I think.You don't want to be responsible in the unlikey event of a collapse.

If a property has massive problems that can't be seen from the road, (blocked by trees, carports, etc.) that could be seen if I just got out of the vehicle and did a small look over, then I would rather find it right then and there and not after attempting to contact the owner.In fact, here's a prime example: One of the properties today had an entire collapsed backside and deck that was out of view from the front.

I've seen some where the studs were literally collapsing into a powder from rot.The last one we did was an old 60's era cast iron tub that we had refinished several times (about $280/treatment) but it peeled.

Could be clogged or collapsed footer drains, but this is not typically the issue in my experience.