I’ve tried to look up municipal codes online in regards to rent by the room and limits on unrelated people living in the same home and have had no luck.

You can also check their reviews online at Google, Facebook, or Yelp.

I need some advice on which choice makes the most sense starting off?

We try and meet our customers where they want to be met online, through whatever channel that may be.Hope that helps.Mike

So, you are left with the choice to proceed as is, negotiate a lower cost, get a concession, or walk away.I would get a quote and request a concession if they aren't interested in fixing it. 

Found through lots of online research and connecting with an agent who works with investors.

In addition to real estate, I’m an entrepreneur and proud owner of several online businesses.Beyond real estate, I’m a certified jeweler, having graduated from GIA, and I’m also a certified Day Trader and FL Housing-certified for affordable housing programs.

I'd recommend joining local meetups or online forums to network.

Additionally, you can network with other real estate professionals and investors—if they own STRs, they can likely refer you to their CPA.If you prefer not to attend in-person meetups, consider joining local real estate groups online to connect with both tax professionals and investors.

Find a reputable roofing company-look at online reviews and find one that has been in business for a while...ideally local company.Inspect the roof-are shingles curling?