I didn’t have a mentor and learned the hard way of how to service the general public and real estate investors.Master how to service the general public and at the same time find a mentor who is licensed and does real estate investments in your state here on BiggerPockets.I wish you success!

Publicly available vaults and exchanges dont have good inventory.

-Neighborhoods that are walkable/bikable or have great public transport (big ask for Cleveland) are very popular.

Who would buy a 10yr bond @ 2-3% when Zuckerburg just crushed 8% gains today in the midst of a publicity nightmare. 

My suggestion is to contact a Real Estate Attorney and have them help you structure the deal to protect you.

They may try to stay more urban vs suburban but the reality of public schools, parking, open spaces, short commutes will eventually catch up to them and most will head to the burbs and into SFHs much like generations before them.

But if you're saying they had a licensed contractor fix it or inspect it and state it's working properly, but you think it's not repaired correctly, you can call the contractor as there is usually a warranty, which is why most agents demand repairs are made by licensed contractors so you do have some  protection if it's not done correctly.  

Utilities are generally public and you can call them to get averages, taxes are public as well and can be pulled either from a assessor website or at their office, insurance companies can give you cash value and replacement value quotes by giving them an address, general rule for running calculations for vacancy is 5-10% of gross income, I have seen maintenance expenses all over the map (anywhere from $300-750 or a % of the rent - those vary depending on the number of doors in the deal as well as how much deferred maintenance has to be dealt with or how much rehab you are going to do to negate the deferred maintenance), contracted services, call a few landscapers and get quotes and use those for your analysis. 

A recent podcast highlighted how much information can be obtained from public records.

You want to be fully protected in the event you want to back out.