Because people are suspicious of out of state investors and think strange numbers are scams, you don't want to start off on the wrong foot.

I do notify the neighboring tenants that the part will be shown so they can keep an eye out for any suspicious activity.

A part of me was suspicious that the average tenant wouldn't balk at the additional utility expense since I imagine most will simply focus on the base rent.

I try to do floating floors over anything I'm suspicious of. 

You should consult a lawyer about this one.It's suspicious that they want to pay so much (up front).

If lot/rent stays the same you might be suspiciously increasing the value of the MHP :)Could you just bill back water if you're taking it out of lot rent and say it's either new metering or else raise rent?

People are lazy and suspicious of signing up to another new website. 

It hasn't had any time to gain traction yet, and while I'm sure it will eventually become an invaluable resource, the vast majority of the companies on there have no reviews yet (barring a few suspiciously positive results).Again we fall into the same pattern, the trap of no real actionable intel being gleaned from a turnkey thread. 

@J ScottIntent is key however if a pattern of suspicious activity occurs the IRS will probably still have issues with the method used.

These homes are older (1900's) and I'm very suspicious of the house above.