I have to replace the AC unit because the builder used a CHEAPO brand, but I got the seller to reduce the price by the cost of the AC Unit. 

To me this is a win/win, this saves me the time/money to have a sheriff come out, it gives him an incentive to not put a sledgehammer through walls, or cause damages, and to him, it prevents a judgement on his credit report, it saves him hundreds of dollars in a judgement, and possibly even will prevent, the eviction from coming up on future landlord screens(which is something I don't like, as these type of people and their actions need to be public record).Thoughts?

At 100 a month increase you are talking 41 months ( a little over 3 1/2 years) to get a positive of the 100 a month back.Now increasing rents and reducing expenses will usually grow your equity and resale price.

Developers hate this because they like the pre sales to help fund the project but hate that they lose out on hundreds of thousands of dollars on appreciation per unit.Now most developers will have restrictions in their contracts to prevent this.

Well here's what I figured out, using the first link as an example ($52k triplex, assuming 1 unit is vacant):-TaxesIndianapolis, marion county, 3.13% or $1627 a year, though there's a homeowner deduction that reduces it by half If I live in the house.

These 2 factors will also reduce your returns.Thanks for sharing!

Originally posted by @Josh Mitchell: Water, Heat, Gas, pool, common insurance, scavenger, landscaping, elevator, tennis court, basketball court, parking, storage, laundry, clubhouse, snow removal, exterior maitenance, security door locksSome of the items you list will reduce your costs but many just go to pay for luxury items for the tenant.  

Usually, the cost savings they see from reduced time spent on rent collection, reconciliation, and accounting well outweighs the cost of PayNearMe.

A good agent will pull their own weight and prevent you from overpaying for the property.

Thats seems fair as either party can simply vary the option terms e.g. reduce or increase monthly lease.