I am a local Realtor in Indianapolis, IN (which is landlord friendly) and I'm happy to answer any questions you may have!

I also don't have enough knowledge to vet who's a good operator.  

You may able to find someone local in Dallas who could help you.I've also known investors who do rent by the room.

Zillow, For Sale By Owner posts on facebook, your local newspaper, and craigslist.Wish you luck in your venture.

*Any red flags unique to the Pittsburgh market.I’m also hoping to connect with fellow investors, agents, or property managers who are familiar with the local market.

I find new lending opportunities by networking at local RE Meetups, Training Classes and real estate functions.   

Just do thorough research on the local market and have a solid plan for managing the properties remotely.Good luck!

Joined a local investment group and got tons of support How did you find this deal and how did you negotiate it?

I am a local Realtor and I work differently with my investors.

  (2) Variable cost: platform fees from Airbnb and VRBO, lodging/hotel/transit or whatever pass-through tax your local AHJ requires, cleaning fee, cost of replacement for consumables, repair and maintenance, etc.