It did require a Z Wave hub, but there is no ongoing cost or subscription.

This could be in capital gains on the ongoing profit from the performance of a property such as rental income. 

There are different methods of education depending on how you wish to carve yourself into the space. 3) Seller Outreach: I recommend a combination of a CRM system, sources for researching potential contacts, and daily rituals that will deliver result on an ongoing basis.

Yes, it costs the same as what a management company would charge, but then you don't have the ongoing costs associated with a manager which is something I assume you are trying to avoid? 

I’m going to have to increase rents but my main concern, is this going to be ongoing every year?

In order for the Solo 401(k) to remain in effect, the self-employment must be ongoing.  

I think it depends on how much you depend or care about the ongoing passive income.For me, it's all about keeping my passive investments - passive.

You can find more thorough takes on this everywhere on this board, but just quickly:vacancy, leasing expenses, property management, garbage, ongoing maintenance, big capital expenses to HVAC, sewer, roof, window replacement, possible sprinkler upgrades, tax changes (is the 7200 on current valuation?

@Sanjeev KaushikThose fees are common, and are reasonable for the services provided, which typically involve a good bit of specialty expertise and ongoing guidance with respect to operating the vehicle in accordance with the IRS rules. 

Consider your down payment, closing costs, and ongoing expenses such as property taxes, insurance, and maintenance costs.3.