I’m potentially looking to purchase a mid-term or long-term rental property in a different state because I feel I may be able to find better deals elsewhere.

Their money, your labor is a potential disaster in the making; what if they don't like the install? 

Seems like a property that isn't going to appreciate rapidly so cashflow will be vital to its investment potential.

., the 2006 or 2009 IECC — International Energy Conservation Code).Cost Considerations for a 90-unit or 112-unit Project:The actual cost of qualifying for the 45L tax credit depends on various factors, including:Energy Efficiency Compliance: The primary cost will come from ensuring that each unit meets the required energy efficiency standards, which typically involve energy modeling, certification from third-party energy raters, and potentially upgrading insulation, HVAC systems, windows, and other components of the building to meet the necessary performance levels.Energy Modeling: Typically, you'll need to pay for an energy consultant or engineer to model the building's energy performance and ensure it qualifies for the credit.

This is how I see it:Single-Family Homes:Pros:Larger pool of potential tenants (families).Simpler management (one tenant, one lease).Often easier to finance.May appreciate faster in some markets.Cons:Only one income stream.Vacancy hits harder financially.Duplexes:Pros:Two potential income streams.Live in one unit and rent the other (house hacking!)

I’m really interested in learning more about your experience.I’m curious about the potential downsides and challenges you’ve encountered with this system, especially when it comes to picking neighborhoods.

I would characterize Columbus as some positive cash flow but amazing appreciation potential.

An additional benefit of a detailed engineering-based Cost Segregation Study is that it can increase potential insurance premium savings as well as provide support for the property tax appeals process.

The Banderas Bay area (from PV to Punta Mita) has lots of potential with the economic growth and the tourism industry expanding north towards San Blas with over 30% appreciation in the past 3 years.

>on top of dealing with insane lawyers and social workers who believe that less fortunate people can hurt wealthier people.