Here's a breakdown of the situation:Current Occupancy: 80% (16/20 units occupied).Current Gross Rent Roll: $14,265/month.Market Rent Potential: $17,665/month (100% occupancy).Renovation Needs: 15 units require full renovation ($10K/unit), 4 units are 75% renovated ($2.5K/unit), totaling $160K in renovation costs.Vacancy Loss: $41,820/year in lost income due to current vacancies.Cap Rate AnalysisThe seller lists the cap rate as 9.59%, but this is based on the projected NOI of $119,858 (assuming full occupancy and market rents).

.- Many of these HCOL areas also have strict limitations on AirBnB or short-term rentals... that do not apply to owner-occupants - thus allowing for extreme cashflow potential for house-hackers.

All too typical park owner who took all the profit out of the park without reinvesting in the business then wants to sell you the potential he was too cheap to invest in. 

Each lot is assessed with the taxes to cover such cost and they are paid monthly for the first 15 (give or take) years as part of your mortgage payment.

If I have a skill, knowledge, the right contacts or or a passion that can be leveraged into potential gains, that is where my money is applied.

Potential for Over-RelianceWhile guidance is valuable, it’s important to maintain your independence as an investor.

The potential problems mentioned by the responding posters in this thread are real and well thought out.  

Even one vacancy or non-paying tenant could potentially be a major problem.And yes, there were vacancies, and non-paying tenants, and major problems.

We bought our first rental property, a duplex in Portsmouth, VA, in what we assessed was a C neighborhood in March 2023.

Here you would have to put it in the MLS if your are with NAR, but it wouldn't syndicate out to all of the public sights, and you can send it to any potential buyer that you may know.