I would have a property manager as I know I'm not allowed to actively manage real estate in a self-directed IRA.

I'm looking to replace my income as well, but do some active investments (i.e. flipping) with some lending on the side.9 units in Seattle is no small task with how much things cost here. 

The money is made when you buy, getting in the deal at the right price and managing well along the way.If you want to be actively involved then start analyzing a few deals in your area using the bigger pockets rental analyzer. 

I know Crowd Street and Realty Mogul are also pretty reputable.

I found an apartment complex in the  South Chicago 60621 zip code off 72nd street in between I-94 and Memorial Park.Can any locals/investors give me any low down on properties in that area and confirm if the rents are about right.

Downtown Rside can be very block by block (1st street to 10 street), but they are definitely adding a lot of new things to main street and mission inn area.

@Kyle MitchellAre you looking for passive or active opportunities?

There are also requirements for number of off street parking spots per unit, private entrances, etc.

@Justin Y.The rental income will qualify as earned income if you are actively managing the properties.Here is what IRS Publication 560 states: https://www.irs.gov/pub/irs-pdf/p560.pdfNet earnings from self-employment.

Many providers of both styles of service are active here on BP.