The lot is flat and level, so we only need a short gravel driveway.

It should be pretty accurate - high level data sites are not always going to be perfect, but should always be directionally correct and AirDNA has a pretty strong track record. 

Assuming a 40% expense ratio, the net operating income at the current income level would be around $19,440 annually and $28,800 after renovations.At a $360,000 asking price, the cap rate based on current NOI would be 5.4%, which is low for a park with park-owned homes and required renovations.

Here are some indicators to help you assess a buyer's seriousness:Questions: Serious buyers will ask detailed questions about the property, such as maintenance costs, neighborhood amenities, and property taxesStrong Offer: If a buyer makes a strong offer quickly, it often indicates a high level of interest and intent to purchasePrivate Buyers: If approached by a private buyer, ensure they provide a Letter of Intent (LOI) and proof of funds.  

While the image of yours I found seem to show the main entry to the 2nd floor at ground level, the older the prospective tenant, the less interested they are in a non-ground floor unit. 2) Using another part of the property as storage could limit interest and I could see that as a turn off with folks once they find this out.FYI, the listing I found on realtor.com makes no mention of the tenant not having access the entire property or the basement being used as storage.

And the reason why your "tale of two halves" will play out as you described.Demand:  This has actually been high almost all along, but rent growth hasn't materialized in response due to high levels of new supply. 

If they work and the risk level is something you are comfortable with, go for it.

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Depending on your income level, you may be able to take some losses on your return.

Step 2: Narrow down your "buy box" (are you market-indifferent, are you looking for a certain level of cash flow, etc.).Step 3: Connect with real estate agents and begin making offers!