house in decent condition . no application / no interest so far.is that make sense?

Once the property is in a rentable condition you can explore a strategy to rent it STR, MTR, or long term.

I've owned my rental SFH for 1.5 years, and noticed my property tax is significantly higher than my neighbors' properties with similar square footage and conditions.  

My goal is to build a data-driven tool that provides actionable insights into which neighborhoods and property types are in the highest demand, based on metrics like:Time on market: How quickly rentals are being leased.Property characteristics: Bedrooms, bathrooms, size, and amenities.Pricing trends: Rental rates relative to market demand and property features.Visual quality: Leveraging property photos to analyze the style and condition of rentals that perform well.The tool will allow users to:Pinpoint areas with the fastest rental turnovers.Understand what types of properties (size, price range, features) rent the quickest.Gain deeper insights into property presentation and amenities that correlate with high demand.Thank you in advance for your feedback.

There are multiple properties they own in the same condition now.

Keep in mind local zoning laws and market conditions in Portland versus Salem—Portland might offer higher rents but stricter regulations, while Salem could provide better cash flow opportunities.Your design approach has proven successful, so continue focusing on appealing upgrades like kitchens and bathrooms, but prioritize cost-effective and durable materials for rentals.

I appreciate the tip about the current market conditions.

The operator is taking all of the risk in purchasing and rehabbing the property, handing it off to you fully rented and hopefully in good condition where there are little to no maintenance expenses at the beginning. 

However, its subscription costs can add up, and the effectiveness of direct mail depends on execution and market conditions.

The places are kept clean and In perfect condition.