I googled foundation contractors in your area, a couple show up that I suspect would give you a free evaluation. 

Now if you said as landlord that is was your responsibility to remove snow and ice and then never did so, then I suspect you could be in trouble if a tenant injures themselves.

I can't speak for others (though I suspect that the previous posters are the same), but all my jobs gets the required permits (and in Atlanta now that often requires a GC), all my contractors and their subs have insurance, and they all sign W-9s (tax reporting form) and Independent Contractor agreements before the work begins.

I suspect that is what happened in the apartments; We refinished the floors in the apartments and now we require rug pads in units with hardwood flooring.

I suspect for near New York city it is a bit conservative but still gives some reference to what maintenance/cap expense, vacancies, miscellaneous, etc. add up to.If you refinance, the RE will be more cash negative than it is now. 

@Austin Smith I suspect that the problem is the state laws of New Jersey AND the type of rentals you own.

I suspect it would cost more than $700.

I suspect the seller just goes dark.. 

I don't know the type of lease but I would suspect a mini-storage lease would be a good place to start.   

Most of them were landlords with a single property.Now... people bring me their return to review because they suspect there might be a problem.