Tenant B has the option to enjoy W/D for a set, flat monthly fee.

Part of it is generational, part of it is character traits, and part is understanding things like tech adoption & the network effect. 

An advisor, not affiliated with any investment house, who works on a flat fee basis would be a step in the right direction. 

This would be a flat fee payment for the use of their license for permitting SFH.

If it's not included in the rent, many companies charge a flat fee to monitor & pay utilities.2) Assuming you're referring to resident benefit packages, renters insurance, and other charges for services the PMC offers to tenants. 

and of course a lot of DSCR loans are quote with a 5 year pre-payment penalty which of course can be VERY expensive if you have a 5 year flat 5% PPP and either rates drop or market conditions are such that you would like to sell the property. 5% of 300k for example would be 15k. 

I'm in Chicago and was just curious where your 4-flat is located here?

No underlayment was needed, but the floors have to be pretty flat for an easy install. 

plus for infrastucture and that is flat NO DIRT being moved just underground and paving . sidewalks go in by each lot owner.  

By default depreciation is straight line taking a flat amount per year based on the expected life of what you are depreciating.