The easier solution is to make the basement technically part of the 1st floor even if you won't use it that way, getting a third unit approved is not something that will be easy. 

Affordable Housing Focus: Expanding programs to increase housing availability, particularly targeting urban rental affordability2.

Here’s a good starting point:Identify Your Target Market: Mid-term rentals typically cater to groups like traveling professionals, digital nomads, or people relocating for work.

To make things easier, I am really just prioritizing cash offers so the process is more seamless.  

Investors looking for fix-and-flip or rental properties find it easier to maintain occupancy and higher property values in these areas, even outside of peak seasons.Why Less Seasonality Matters for Real Estate InvestorsFor real estate investors, markets with less seasonality can offer significant advantages.

@Leo Szac if you do consider Detroit, which of the 183 Neighborhoods will you be targeting & why?

I got helped of a good amount of start up funds to get started... which gave me insight on a target month to start. 

It would be much easier to send money to each other.

I think it also depends on the class of apartment you have as well and who is your target tenant. 

The Small Business Administration (SBA) offers a comprehensive guide to writing a business plan, which includes templates and examples that can help you get startedFor your marketing plan, consider identifying your target market, setting clear marketing objectives, and outlining your strategies for reaching potential tenants or buyers.