My mom and I haven't hashed out our long-term plan yet, but I think we'll probably start out with smaller multi-family properties to get our feet wet, then move into commercial once we know what we're doing.  

I realize the best method would be for us to BRRRR something, but that is daunting and the wife would prefer we get our first property the more traditional purchase way to prove out our methods and get our feet wet.

Either way, if your walls are getting wet, there is the potential for mold.

Since I am from Minnesota there are drastic temperature changes and also very wet.

I had this happen with a property I bought where the basement got wet -- insurance had me call a structural engineer out to take a look and provide an inspection report showing that everything was structurally sound. 

Right now we're just working on getting our feet wet with some simpler (and newer) projects, but when the time comes to get into the historic stuff, maybe we could pick your brain a bit before jumping in?

I have done all the research and I am ready to get my feet wet.

My husband and I are just beginning to get our feet wet  with REI, and MF is our statergy as well.

Jump in and get your feet wet!

We challenged the insurance company and went to mediation, but the adjustor just stuck to his guns and said, "Nope, previous damage" - even though the walls were wet.