It's much less time consuming for you, and it also generates a sense of urgency among potential renters when they see others who are interested, too. 

So there would of been potential for $400 profit for some passive income.

The way to make real estate easy is to tell everyone how easy real estate is, and profiting from people's desperation.

I think there are two things that are at work here: 1) Investors over estimate how quickly they will get a property operating profitably and therefore don't plan accordingly 2) Turnkey Companies oversell their product and don't manage investor expectations appropriately by explaining item #1 to them.

I also would not expect to just tag along, I would be more than willing to put in the required cash down payment and hopefully we make a profit and split the profit. 

Initially it felt like I was cutting into the profit way too much, but this weekend we had to fix something connected to our heat pump and I was glad to have reserves.Thank you!

A four unit can never generate enough revenue to get a professional management company (neither can my 20 unit honestly), so you are stuck with what you are seeing. 

When it is paid off, the place should generate ~$25K in cash flow annually, which will be a big help when I retire.

However, the property already has four tenant-occupied units, generating the income of a fourplex and has been doing so since 2005. 

Nonetheless since my buyers want even more profit, I've been renegotiating with the owner.