After nearly 3 years of operating history, I'm concerned that the properties are not performing well enough to warrant continuation of the venture, and I'm considering selling.

Why would they stop if nobody sues or gets the police involved?

FULL STOP  Your ability to make such a profit will depend on your ability to manage the asset better than the prior owner.As a seller, the broker should be helping you determine the price point, at that time, that attracts enough buyers to achieve an optimal sales price.

Here's what I've learned:Inspections Are Non-Negotiable: Always get a full inspection, but don’t stop there.Plumbing & Sewer: Have the plumbing and sewer systems checked specifically, as these are common problem areas in older homes.Electrical System: If the inspector flags any electrical concerns, bring in an electrician during the inspection phase for a detailed evaluation.

Wishing you the best of luck with your new venture.

If the mold is caused by a leaking pipe or water getting in from outside, then you should hire a contractor to stop that intrusion immediately, then dry out the home and remediate the mold at your expense.I also recommend reading and sharing the EPA Mold Guide.

Tenants stop paying rent all the time.

Best of luck with your investing ventures.

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People had no idea what to do at stop lights, gas pumps didn't work and those that already pumped gas couldn't pay because the attendant couldn't take cash, the lights were out in office buildings and hotels, grocery stores were worried about frozen and refrigerated food going bad, theme parks had people stuck in rides screaming to get off.