This year is the first year I will qualify as a real estate professional and be able to take some aggressive deductions through things like cost segregation studies.

Based on the value of a property you can likely get away with a inexpensive desk top study such as condos and you will require a more comprehensive engineering study for larger properties like a 4plex.Desktop / modeling options are sometimes good for smaller residential like you mention. 

Study landlord basics, especially on what to include in your lease (going forward you will ALWAYS have a written lease).(2.5 Learn from mistakes and don't repeat them.)

If you haven't done so, you may want to get an estimate for a cost segregation study on these units.

Study disqualified parties and prohibited transactions.  

@Brad Herb - one thing to watch when investing in a syndication with an SDIRA is the highly trumpeted ROI in early years via a cost segregation study and the accelerated depreciation it creates...which you'll not be able to take advantage of via a SDIRA.

Purchase Another Investment Property and Utilize a Cost Segregation Study:When you reinvest in a new investment property, you can perform a cost segregation study to accelerate depreciation.

I recommend you really study your market to determine the appropriate rent rate, then market yours 5-10% below the competition for a six-month lease.

It takes a lot of training and continuous study to stay on top of tax law, especially with all the changes in real estate tax rules.

Study the market.