Also I agree with another post before regarding the complexity of structuring a deal like this, which would also turn me off especially if I was just getting started.

This continued imbalance in housing supply to household formations and population growth.Changing Demographics and PreferencesPeople are also waiting longer to start families (Source), and people are valuing more the flexibility that renting provides in the remote work and online business era as well as the sense of community apartment complexes can provide in our digital and post-pandemic world where people feel less connected to the community than before (Source).

Would a container community be more sustainable than an apartment complex? 

It just adds complexities and costs without any benefits. 

We had a wash & fold service with pickup & delivery, which added complexity to the operation.

If you can find a place where the HOA or COA is flexible and you are able to convince the membership to go into development and perhaps convert the property into a co-op you could build a new apartment complex with commercial rental spaces on the ground floor and residential spaces on the top. 

One complex I own in replaces up to the studs.

Many landlords, myself included, have faced the challenges of dealing with problematic tenants and the complexities of Massachusetts laws.In fact, we specialize in buying properties in Massachusetts and New Hampshire that come with ongoing evictions and difficult tenant situations.

I know a lot of CA investors doing MTR/STRs to cash flow in-state and OOS but it's a lot more work, not mailbox money.I hear stories of OOS investors losing money in the Midwest, the worst being a CA investor buying 3 apartment Class C complexes in Missouri who finally sold it 3 years year with all the repairs and tenant issues after changing PMs which didn't help.

A good friend of mine, managed a similar transaction last year: he merged several single-family homes around Florida and exchanged them for a mid-size apartment complex in Chicago.