The building is no-frills, but the units are very nice, and we love the location. Both downtown and NE are walkable, and very easy driving access to the neighborhood if you're coming from west of the city.
I think you might benefit from actually seeing the units. One would assume that the builder/renovators included items in their plans to prevent these types of moisture issues from happening. Hard to tell unless you ask them directly.
But, I would suggest you don't go in to this process unless/until you have an agent on your side. If you wait until you are "ready to make an offer", it will be too late to have someone working and negotiating on your behalf. The time to secure your agent is from the get go!
And, generally, it will not cost you anything out of pocket.
Regarding the bricks and moisture. I'm not sure what the exact nature of your concern is. Humidity isn't all bad which is why some people buy humidifiers. Almost any agent will advise you to write an offer that is contingent upon you being satisfied with the results of a thorough inspection. Additionally, the seller and their agents are required by law to disclose to you any problems they know of that could affect your use and enjoyment of the property. You could also talk to residents about your concerns.
Here's some general info about bricks and humidity that you might find helpful.