It sounds to me like you are putting a lot of time, management, and risk into having a large base of unskilled labor that you can draw upon as you need them for either growth or eventually training.I agree with @J Scott that you are likely at risk if one of them were to get hurt on one of your jobs, just like you would be for any of your other employees, and you are probably getting a lower quality result by using unskilled labor.I think the safer and more flexible way to grow and maintain quality is by using subs with their own licenses, insurance, etc. that you can manage as you slowly bring in new employees that you can train and build a relationship with.

Monica McLaurin Interesting since we have also started looking at Manchester recently since even with the added costs of a property management company, it is less expensive than owning and maintaining a multi in the Boston area...Can you please keep me in the loop of your findings?

I think it likely that banks today will still want to maintain their loans in 'sale-able condition' even if they are not looking to sell them right now.  

Sometimes no matter what you do, pipes will freeze, but many policies do include a stipulation that you do your best to maintain heat or drain the system completely in order to have the water damage from a burst pipe covered.

The landlord is concerned about maintaining some control over the quality of the tenants in his park and you should sit down with him or her and discuss the parameters that would make him/her happy.

Good to be on the conservative side and allow for that in your analysis but people, especially with families tend to stay longer in well-maintained SFRs with good management, as opposed to a single person living in a 1 BR apt. who moves because of a bit better deal in another building.

However, that would have broken the 'arms length' relationship that must be maintained for the SD-IRA LLC (checkbook style). 

It appeals to them because I'm not maintaining the house, the end buyer is.

The park is in good condition and the other homes are well maintained, so that eases my concerns a bit.  

Once gone they might go wild or stay in check.There is a difference between an illness you recover fully from, and ongoing illness where you maintain it and it never goes away, and an illness that progresses and is eventually terminal.