My guess is, with a maximally frugal approach, mid 5 to low 6 figures to create, and high 4 to low 5 figures annually to maintain.

I got a six unit multifamily building that I am trying to get a mix of long term rentals and mid term rentals but I am struggling to find a company to manage the mid term units.

I suppose on some massive apartments it might be a different consideration, but even then I would not build any systems to calculate the interest mid month for purposes of determining equity/net worth. 

Also discuss with the contractor the time expected for the project if its small, mid or large and if it needs permits and how long would it take for permitting and all, also payment terms, make sure you go with payment terms that are fair to you and the contractor (so many terms but most common is monthly based on completed work with an upfront for materials) and ALWAYS keep the last payment until project is closed (retainage) and you do your walkthrough and if there's any issues you write them down and provide the contractor with (punch list to release the retainer once they're corrected or fixed). read about how to deal with contractors and always ask for references but it really depends on how big the job is, personally I wouldn't spend too much time doing due diligence on small jobs such as door latches or shelving rather on additions, layout change and other scopes.Good luck!

Quote from @Willie Creear III: I currently own a Mid-Term rental located in Greater Seattle.

(mid-south region)MILandList.com: Affordable Homes, Lots and Land (City Lots, mostly in Michigan, offers seller financing)Many sites will be happy to sell you unbuildable tracts or desert land.

I plan to rent out the additional rooms, one as possible mid-term rental (MTR) to cash flow more (family members are agreeable to this since they're getting a great deal). 

Hi All,  My wife and I are just starting our journey into rental property ownership and look forward to learning from you all on our way.By way of introduction, we are empty nesters with 2 adult kids in NW Wisconsin.B...

We have a glorified house hack scenario in Portland where we rent about half of the property out as a mid term and while our travel nurse is working we are improving the second half of the property for a future permitted attached ADU. 

So they hit the areas that I was looking for.I purchased a home in Detroit which closed mid-Dec, while I was overseas.