Small multifamily, up to 4 units (at least to start), then graduate into larger investments as your portfolio performs positively. 

Quote from @Jonathan Greene: Never sell a high-performing property with no cap ex and low maintenance to buy another rental.

While brand building is important I want to know what they have done.

I pay 4000 a year in taxes for a brand new single family home I can only collect 1100 a month on....4 months of rent to just cover property taxes,  insurance is another 4000k.... that's 8 months gone.  

They don't guarantee their performance and your money is lost if they flee with it. 4.

Make sure you don't chase deals where you can't perform.

I don't like brand new properties, since the first few years depreciation can be steep, similar to a new car.

I definitely recommend that you seek out a Certified Cost Segregation Professional so that you are confident in the quality of the work performed and the deliverables produced.

I may also charge if one of our people can't perform scheduled maintenance because the tenant has not crated an aggressive dog.

@Eugene Lubman Selling the property to your parents allows them to generate passive income while enabling you to perform a 1031 exchange to defer capital gains taxes.