Additionally, checking local listings on Zillow or Craigslist can help fine-tune the rental rates in that specific area.

Additionally, is it reasonable to request the current leases and what I believe is called the rent rider form (please correct me if that's not a real thing) prior to making an offer?

I own my own house and I own some land out of state, so I have assets I want protected.I have quotes and will be purchasing an insurance policy that provides 1 million in landlord liability and I can also purchase an additional 1 million in an umbrella policy.My question is, is it even possible, or has anyone heard of a landlord getting sued and losing over $2 million on a simple duplex?

Also, make sure there aren't additional restrictions on the property condition, compared to a conventional loan. 

Does it require any additional rehab costs? 

Maybe you could get your City Council members to contract with lead pipe replacement specialist contractors and just add it to your city taxes or something???

As a result, I’m uncertain if any of the properties have illegal additions or modifications.

They're probably fine with you paying for additional marketing as long as they aren't cut out of the deal.

.✅ Investors - Keep detailed records of ALL rental property expenses to reduce your taxable income - helping your CPA spot additional tax saving opportunities.Imperative to use a CPA who is well versed in Real Estate tax code.My CPA is just that - DM me to get his contact information....

Aside from that the biggest value add areas I see are as follows: Kitchens, Bathrooms, decks/patios (if added), additional rooms/bathsKitchens and bathrooms tend to be the go-to, but all of those can help you get the most bang for your buck. just keep in mind that if the area is already of high quality, then it may not be the best area to spend the money vs something that is blaringly in need of an update.