I recommend you go visit a few times to network with local investors or find an investor friendly agent so you can gain local market knowledge, find off market deals and for things such as showings, picture taking or getting accurate comps.

My piece of advice would be to make sure you have a great agent in your corner to help you assess the market, make informed decisions, etc. having a good agent can be day & nights difference when it comes to your experience.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

It's an insurance agent!

;(- if as-is value is less then the balance on the mortgage + arears OOOPS you need to have the owner work with the bank, you as the investor buyer AND a short sales expert often an agent work the tedious and usually failing short sale process. 

However if I was an agent, broker, GC, etc I do not feel that it would be my responsibility to verify the underwriting.  

I'm a Real Estate Agent, looking to connect with other investors and realtors.

I would give the listing agent a call.

Sure, being a RE agent is an option.

Well I must have an AWESOME local agent because I have no complaints at all and have used them for years.