They are reporting builders intend to incorporate into their projects a for rent component to either sell to institutional investors (see my comment below) or manage themselves.I'll also add anecdotally, I'm of the opinion that many of the hedge funds who built portfolios of SFRs  during the not so great recession and still have them on their balance sheet today will seek ways to continue to participate in this asset class by creating ownership vehicles that they can either retain, participate, or manage instead of exiting.

For me, with my kind of investing (I invest in my own assets), it's reaching personal goals (lifestyle, financial), risk mitigation, and how much property management I want to take on (more properties, more management ;)  In the future I may offload some of that, but this being San Francisco with the nuttiest tenant/landlord issues imaginable, I have my own very specific ways of operation that I want to retain control of.  

Sometimes it's worth just breaking even to retain your peace of mind.

I believe that STL is on the cusp of being able to retain them.

Try porcelain it's the strongest and doesn't retain water.

How much of the security deposit should I retain for having to paint a few walls?

Obviously, you retain 51% ownership and decision making, and he is a minority partner.

We have problems retaining tenants because of it and it seems the city has been increasing fee's and costs on us.

As a seller, I would want the advice of a landlord-tenant attorney or to retain the services of a  property manager. 

Generally, the coverage of the policy will state; “The coverage of this policy shall continue in force as of Date of Policy in favor of an Insured after acquisition of the Title by an Insured or after conveyance by an Insured, but only so long as the Insured retains an estate or interest in the Land, or holds an obligation secured by a purchase money Mortgage given by a purchaser from the Insured, or only so long as the Insured shall have liability by reason of warranties in any transfer or conveyance of the Title.”