Every property we looked at had unreasonable ARVs and comps.

I did my calculation, if I keep it long term - I mean really long term, suppose the property goes up to 840k in 13 years, not unreasonable, by that time my 15 tear mortgage is paid off..so I will have 850 minus 500k gain * 15% long term tax = $75k, so I after tax will have 775k, compare to sell it now and net 380 or 390k.

I suppose you have never experienced how unreasonable insurance costs can be if you let the bank get the policy.

Because the beep happens at random intervals or sometimes days apart, this seems unreasonable to me.As a last ditch effort, I am having our electric, hvacs, and washer and dryer looked at. 

We accept pets on a case-by-case basis, which means if everything else isn't strong or the pet was something borderline unreasonable they would be rejected.

That in the event any repair or improvement be required for any utility service that such expense shall be paid by the party served by that utility in order to restore both sides of any common wall to its original state.The parties generally further agree that access shall be granted, by either party to the other, upon reasonable notice given which may be necessary to facilitate the repair or improvement of any common improvement, such access not being unreasonably denied.

Now having said this, Is 25k-40k unreasonable or a realistic profit margin?

That said, looking at your list, I don't think anything is too unreasonable and shouldn't be too expensive.  

The tenant has made unreasonable complaints about dust, carbon dioxide and dryer exhaust.

Even doing something as drastic as obtaining a court order often will not result in the removal of false statements.Businesses are subject to the whims of disgruntled employee and unreasonable customers (some in attempts to intimidate the business into giving into demands).