This differs from things like general repairs/maintenance to fix and/or maintain a property, or, general cleaning and so forth. 

Quote from @Brandon Dunkin: Maybe it's different in different markets.

These hubs can manage various devices from different brands under one platform, simplifying your setup.

And if there is a conflict the court system will bend over backwards for a dead beat tenant or squatter and hold landlords to a entirely different standard. 

I've heard Stessa and Buildium for the most part but find it's actually very difficult to use for the average small scale landlord (I have 7 doors)The cost of Buildium I think is way too high for the small scale self managed landlord like myself. 7 units comes to $55/monthAs for Stella, the UI isnt the greatest and probably tailored for more property management companies, and the accounting features are rather lacking for Canadian tax laws.

If you sell now, that is correct; but if you turn it into a rental and haven't lived in it for more than 2-3 of the last 5 years, you pay capital gains on all of the profit (assuming you are in the US, Canada works differently).

As real estate investors, finding the right markets to invest in can make a significant difference in our success.

You can definitely do this via a title company to record a mortgage on title 

Moreover, there are leasing companies such as PadSplit and HomeRoom who implement this daily, but for your property size/scale, I don't believe they'll be necessary. 

But it can be done and whether you'd do it, where, what kind of properties you'd buy, ... will depend on your objectives, financial resources, knowledge, connections, ...Also, opportunities can be very different from country to country and within the same country, as it is within the US.Financing could be different, when available, but a 100% cash investment can be more profitable than in the US, especially given the high interest rates.My best advice is to be clear about your objectives and narrow down your options.