Estimate utilities and figure out who pays them (separate meters, landlord paid, etc)5.

Technically, when raising funds under Regulation D or any other SEC exemption, there’s no strict requirement to utilize a Private Placement Memorandum (PPM).

I Offered it to them at 10% below market with him paying utilities. he wanted it, so I screened him to verify he can afford it.

That's the reason there are so many fourplexes and so few fiveplexes or even sixplexes.From what I gather, post offices and utility companies rarely care much about the permitting/zoning issues, so it probably wouldn't have been hard to get those set up.

Even something as simple as utilizing ChatGPT to speed up certain processes such as asking for generalized information on a market's demographics and immigration patterns can be useful and save a lot of time.

Use STR-specific insurance to protect both parties and automate operations with platforms like Airbnb, TurnoverBnB, and PriceLabs.Taxable income from the STR must be reported, but you can deduct related expenses like cleaning, utilities, and furnishings.

Adding the current mortgage and utilities would be roughly $1,350 resulting in a profit of $650/mo.

So it takes comprehensive knowledge of the market trends, zoning laws, the local municipalities approval process, survey cost, subsoil conditions, irrigation requirements, development cost, utilities (gas, power and internet), city water or well water, city sewer or POSW to name just a few...A builder developed the farm field next to our SD, bought it for $1.5M and wanted to build 25 homes as a conservancy subdivision.

How messed up the other utilities are, how much has to get torn up and infrastructure done before any rebuilding can take place. 

You will have to gather more accurate operating costs (vacancy loss, taxes, utilities, insurance, mgmt fees, maintenance, HOA) to best determine potential future performance.