A good estimate assuming no major issues would be $15-20,000 for the separation of those items but makes your property more appealing to tenants as well as future resale. 

And yet, not one of them ever called me back as if these call agents are oversea call centers that just read stuff off a script and they don't understand the business model themselves.

I promise you that.So again... why are you deciding to do DMM, Door knocking, Driving for dollars, cold calling, etc. etc. when NONE of these models filter or target motivated sellers.

Could have been a bad timing coincidence If a tenant wanted to bring in their own washer and dryer I'd be happy, no wear and tear on my items and no service calls when the washer doesn't work or the dryer doesn't dry.

If you put this in as a line item on your budget, and the numbers still work, it's a cost to pay an "employee" to do the work. 

. $18000/10 year life span/12 months in a year=$150 per month for 1 item in a capex budget.

They are just recent items that CA has shown is valued.  

Considering that I have also tried the below items, should I try to get a title search?

The list of items you'll be repairing and replacing just grew to multiple pages.None of the items you mentioned are good things that are good things just because the house is next door...or they are countered by bad things.

Realtor teamed up with builder to list one of their models on the lot.