They cost 2 to 3K for movement and instillation.

For the perpetually late payers I will start assessing the late fee on the sixth.

The noise is from movement in the unit, not music, partying, etc.

Social aspects of RE are not limited to low income tenants, far from it.Look too, for the National Association of Housing Officials and Redevelopment (NAHRO).Here are some organizations or other folks that deal in RE within their realm.Office of AgingAssisted LivingAdvocate Organizations for the blind, handicap, children, etc.City P&Z OfficesDept. of Defense, especially the Corps Of EngineersDept. of EducationDept. of Health and Human ServicesEconomic Development identifies blighted areas and funds redevelopment.HUD/USDA have social and economic skills educationHOA organizationsLook to your local United Way, they are often the gatekeepers for funding going to community service organizations and they will know non-profit housing entities that serve an area.Developers base growth from social impact studies, demographics are the social and economic movement of populations.  

For example, an easement granted in perpetuity for a single consideration or the transfer of the easement by assignment or otherwise may constitute a "sale"to which subsection 168(5) relating to the timing of liability for sales of real property would apply, as well as the self-assessment rules in subsection 221(2).

If they were installed after all these problems came up then the movement should be greatly reduced but if the house is bearing on expansive clay you could still have more settlement/shifting down the road.

But then they'd probably join the "fight for 15" movement... 

You could use revenue from flips (funded with hard money) to accelerate the principal pay-down, which would allow you to create more equity in the property you currently own, and perpetuate forward ad infinitum.The only way to realize all of the equity in your current holdings is to sell them, which may or may not be a part of your long-term plan.Small tangent: $1k cash-flow is not bad for two units per month, as long as your already accounting for CapEx and maintenance.  

A panel alone is above $1000, and does not include an entire rewire.That said, I have bought without an inspection...but lived in a place where there was no soil movement, no water damage, and instead we got stuck with termites. 

I could also use some help learning about NJ population movement, housing supply, employment, planned public utilities, transportation, etc, if you know of any resources.