@Nichole StohlerI find using a SDIRA to be a great tool for passive investments and growing your retirement with less stress than the stock market roller coaster. 

is there a tool on this site? 

Build a strong team, including agents, lenders, and property managers, and use tools like the BiggerPockets calculator to analyze deals.

I've had a long career in community development and have a lot of bank contacts that would likely be interested in investing, but I'd need to prove the concept first with an initial fund (there are also a lot of other community development tools that could be leveraged to maximize and scale this).

Quote from @Tod DuBois: Looks like everyone is using some software tools for various tasks, I'd not heard of most of them.

In today's world there are so many tools available to help you buying OOS. 

All of the tools that you use to try to figure out if a potential tenant will be a "good" tenant revolves around trying to answer those 3 questions.

Connect with experienced investors, real estate agents, and financial advisors who can provide valuable insights and guidance.

Tools like the BiggerPockets calculator and books like The House Hacking Strategy can guide you further.

Typically, co-op's are less valuable than condos for a number of reasons such as supply/demand, lack of investor interest, older units, estate planning issues, financing and board policies.