Hi @Benjamin Seibert.
Lenders: I've used Middletown Valley Bank and was very happy with George Chaney the VP and their customer service, especially from Lauren. But I recently emailed them a short letter about a new deal, didn't hear anything back, emailed again, was told their residential agent would be in touch, and that was two weeks ago. Guess they don't want more of my business. That's okay because I discovered Woodsboro Bank in the meantime, a community bank in Frederick and they have been amazing. I highly recommend Woodsboro, especially Erin in residential or Richard in commercial.
Property Manager: I don't always go by online reviews, but I was looking at reviews for Valley Properties a few months ago, and there are just too many negative Google reviews for me to give them a try.
Contractors: I agree with Bill. I had a good one, but he started to show up late and wasn't very responsive in the end. I'm using another one now but I'll see... Hope this helps. Good luck to you.