I started my domain over 10 years ago when people first started going online trying to buy fixer upper houses.

I live in Minnesota but have a video editing business online so I can go anywhere and there wouldn't be positives or negatives to any. 

It is not very difficult or complicated to evaluate commercial real estate, there are plenty of good books available that can teach you how, textbooks, online courses, community college classes, even excellent youtube videos etc, and it is actually quite enjoyable in the process to learn.

Microsoft Excel, and most budget or free online bookkeeping isn't going to cut it in this situation.For the rental properties you own directly, I often tell clients and prospects that a P&L in Microsoft Excel is just fine and a balance sheet is not necessary for tax purposes. 

I'm perusing through some online listings for multifamily in my area.

Definitely join your local chapter of REIA (real estate investors association) or join one of the ones that are fully online (Columbus and Cincinnati).

You can find them through local real estate investment groups or online platforms.Auction or Estate Sale: If the property has unique characteristics, especially being a large, old Victorian, it might attract specific buyers looking for such properties.

They have a team of designers who do it online.

In Land Investing Online there is a free support group as well as an affordable monthly subscription (I think $100) where you can share your deals for input from the other members. 

It was tricky because the basement ceiling height is not quite 7'.From what I have read online, Fairfax limits STRs to 120 days per year, so it would not be feasible.