I've had so much emotional and financial stress from this house after I moved out (mostly from a mean and very demanding tenant).

Home prices are one, cost of living and relatively disaster-free weather keeps insurance costs down.You can look up the median home price for every city or metro area.

The financial analysis side of CRE really excites me.

They didn't like it at first, but they learned the hard (financial way) to conserve heat since they were now paying for it.Have you considered switching all of the units to electric baseboards?

Are there other legal or financial consequences I should be aware of?

Bigger Pockets is a great place to find a real estate tax accountant.A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

(Auctions and foreclosures can also provide great leads.)With $20K, hard money loans are a practical option, as they emphasize a property’s ARV over your financial history.

Buy and holding is the best way to building financial freedom.

If your entity has several years of operating history and good and reliable financials, you may be able to find something. 

@Jordyn Ohs Suggest you run a financial model and assume 100% vacancy.