Developing? 

If you don't have the funds yourself, you need to develop a solid relationship with those that do.

We’re developers managing our own portfolio and don’t have any outside investors.

The analysis also reports that new multifamily development will “remain near the average recorded over the past five years”.Integra Realty Resources’ 2017 Commercial Real Estate Trends Report ranks Pittsburgh #2 on its Top Markets by Multifamily Transaction Volume Based on YoY Change.Pittsburgh’s rental vacancy rate has declined by 25% over the last five years.Pittsburgh is booming with developments (see reference #6), “there is no better place to be a developer right now than in Pittsburgh.

Where I differ with most of the posters on this thread is that I feel solutions can be developed to address the problems and something similar to what the OP suggests would be viable. 

Plus macroeconomics here in Columbus is booming right now because of developments from Intel, Meta, Amazon, Honda, and lots of major companies building out here.

Hi Mark, I am a founder of a startup helping RV park developers source land.

That gets worse as you get farther out of the cityTLDR: values depreciate, inflation has gone basically nowhere in Japan for a long time, the supply of housing is pretty good compared to demand (unlike the US) and that's because of flexibility with rezoning and development, taxes on rental income are high. 

Is there a local developer/builder who might be interested in the whole package?

McKinney and Princeton have been growing a lot and it is a good place to invest, but it is always related to what you are looking to achieve in a rental investment, appreciation or cash flow.At this time that area does not offer a big cash flow and due to the amount of development going on there, rental demand has declined a bit.In any case you have to make an analysis case by case.