So any responses you receive here will never be a true apples-to-apples comparison.I will admit, this advice is a little self-serving since I am a CPA myself.

The more I read the Self-Directed IRA and solo 401K posts, the more questions I seem to have. 

For lawn maintenance and snow removal I have $1,200/year,do you think this is sufficient?

Working towards House hacking a 4 plex and self manage the building to gain experience Later on i will be forming a property management company to manage my buildings once i get to a larger scale that would require it.

I'm an agent, so I self-list. 100% of my buyers have been from the FMLS...

You only need two things... a good, cost effective Contractor... and a good exit strategy.The exit strategy can be self-marketing, developing a relationship with a Realtor... whatever it takes to turn the property.

Commercial encompasses large multifamily buildings, hotels, industrial, office, retail, development, self storage,etc.All of us that are commercial brokers specialize in an asset class and deal size range.If you are looking for larger multifamily or retail STNL or MTNL product it's all I do.

you have some homework if this is not self-evident.(3) should cause you to shutter - - one or two persons can not maintain 75 units (even all SFR) and  it's worse if its 75 doors of MFU. 

Is this for our self or other tenants.

Factoring in self maintenance (eating/showering/gym/shower/caring for dog/ect), thats another 3-4 hoursI went to a local REI networking event recently and marketing for properties was talked about.