She waiting for things to get better but after 3 years sold both buildings because of the non-stop repairs and tenant issues. 

The experience is working out pretty well.I think their goal is to be your one-stop-shop for the whole process and that will suit me going forward. 

I used to use Craigslist to list my rentals previously, but noticed that I was receiving terrible leads all the time, which is why I stopped.

If the mold is caused by a leaking pipe or water getting in from outside, then you should hire a contractor to stop that intrusion immediately, then dry out the home and remediate the mold at your expense.I also recommend reading and sharing the EPA Mold Guide.

It's charged to the tenant, but may be charged to the owner if tenant stops paying - if owner agrees. - Many of the Renter's Insurance policies do offer limited damage protection to owner, so it may be a good business decision for an owner to pay while tenant being evicted.Property managers CANNOT get liability insurance on a property they have no ownership interest in.

Tenants stop paying rent all the time.

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

After moving in, this tenant was nothing but trouble - stopped paying the rent, resulting in eviction and wrecking the place.

I do see some flip opportunities, but flipping is a job; stop flipping and the making of money stops,My next purchase is likely to be in a different market with lower profit expectations than I used to achieve in the San Diego market.  

And when a rising tide is lifting all boats, groups that amplified their results by using risky high leverage could score some massive returns until the music stopped, then will subsequently struggle to keep the rest of their portfolio out of foreclosure.