Find a good property manager and make a good relationship with them.

 ...buy a 40-55 unit 1978-2000 value add preferably (town-house style) apartment complex in an A-B neighborhood.

Save $50k in taxes and then double your cashflow with a government guaranteed bank CD. . 

build a network. 

It pays the bills, but true wealth is built elsewhere.Business Income – As a realtor, this should be a major stream, but I haven’t closed a deal in a while.

Whether it’s dealing with difficult tenants, endless paperwork, chasing contractors, or the emotional rollercoaster of deals falling apart at the last minute, there’s always something that makes you question your sanity.Real estate also isn’t a get-rich-quick scheme.

It may seem trivial for $3-4K/yr, but just consider it as a necessary action to be able to sell one day, otherwise you're likely to be in a serious bind later. 

Not firing a bad property manager fast enough.

Quote from @Josh Bowser: That's a good little deal scott!

You can offer a 40% discount on midweek stays.