Yes you can quit and change with relative ease. 

Are you planning to sell relatively soon?

Related question, do I report all of the expenses/carrying cost that were incurred in 2018 under the LLC or do I need to partIally allocate these to the sold unit and save the remaining expenses for 2019 when I sell the remaining 2 units?

., where the tenant, as opposed to you, your agent or your contractors is responsible for conducting most lease related activities).

As for as the market in Wichita, housing prices are fairly low relative to what I’ve seen on the east coast.

Other relatives live in Colombus Ohio, which looks great to me: University, Seat of Government, entertainment center and industry.  

You can see why posting to any thread tax related unless you're a  professional who only recommends getting a professional and/or only has a pompous remark is all you get for trying to help.  

To sum it up, My rental property will be relatively far and I don’t want to deal with too many issues fixing or maintenance issues.In this case, do you think I should start with condos rather than townhome or single family because of this reason?

It's like a blackhole - once it's starts it's nearly impossible for these places to reverse the trends - a few places in KS have gotten better - Dodge City, Garden City, Hays - they hang on and are relatively "progressive" (I use that term loosely) compared to their other rural neighboring cities) and have found a way to survive and somewhat thrive in today's society.  

The property has potential to be converted into multiple suites, and the taxes on it are relatively low at 14k.