They used different strategies: house hack in CA, STR, buy off market, buy OOS, SFH, multi-units, buy large apartment complex with other investors, etc.Thoughts on 1031 exchange to DSTs to try be more passive (no more dealing with PM, renovations, repairs,  tenant issues) but I've heard the money is trapped for 2 to 5 years depending on the operator, still researching DSTs. 

Usually mold is caused by moisture getting trapped and not being ventilated out of a space. 

Over time, you have to be careful that you don't over prioritize retaining tenants as this can turn into a big-time trap when you have long term tenants.

That being said, for someone who specializes in section 8 such as @Harvey Levin may not do as well with A class properties.

Hello all , it seems everybody in this country is making a bigger deal out of investing in section 8 properties versus let’s just called a cash tenant .

I'm new in section 8 investing and I'm here to learn!

Debt if used responsibly is a valuable tool but to say debt will always multiply returns is the wrong message to spread in these forums where there's a ton of readers who are inexperienced investors and will fall for the trap of following your flawed approach to originating debt.If you need additional help understanding how debt works in real estate, please send me a DM and I would be happy to help you out.

D Class stuff and you'll run into lots of trouble and fall into what I call the "return trap". 

A neighboring commercial building owner is interested in installing a grease trap on my property and paying me.

It's easy to fall in to the trap that everyone else has better resources or opportunity, but that's simply not true.