Hire a great real estate agent who can market the property better than the current agent (or you, if you're selling yourself).

you are better off just putting your name on the first 10, then your wife on the other 10, 

To me better than having a full time neighbor.Maybe that is a demand driver. 

You can often get better deals on a 50-unit, but you will have lower operational efficiency than you might have on a 200-unit. 

Still, shop around for more quotes because you might find a better deal.

Very helpful question that I'm curious to follow - my suggestion would be to work with a local tax professional + 1031 qualified intermediary to better assess your personal situation. 

I have one property struggling at 0% currently but working rates and my expectation is May will be 75% or better on all properties.   

it's just repurposing your housing payment. yes buy primary and househack where one lives is much better choice.not having primary and buying rental OOS is one of the worst decision can be made.

You have a lot better/cheaper lending options with a higher score.

So buying newer, better properties, with more amenities, and reducing my workload.