I just added laundry to a unit and need to update the lease with a laundry line item.

You can do all the prequalifying from anywhere via credit check, call references, verify income etc.Make sure you have a handy person, ac person, plumber, etc etc that you can call when you need some work done. 

Is this for all DCSR loans or can these items vary?

Unless those items are all satisfied (except for housing violations and some non-monetary liens which follow the property), the department of finance will not allow the deed to pass through to the next stop in the recording process.So even if you wanted to dump a property that was totally upside down with liens to someone who was willing to take it from you, you can't do it.

@Marc ShinLike @Andrew Steffens said, for big items, go with quality.

Second, your lease should indicate what items are included/covered by the landlord.

And then the second item is - if you do take out more money, where does that leave you from a cashflow standpoint.   

Quote from @Jaycee Greene: If you go the conventional/DSCR route, these are considered "Commercial" loans and the properties are referred to as "Non Owner-Occupied" and, as such, the cash flow of the property is most important, and your DTI is not generally included in the underwriting.

Does anyone have specific reference that gives clarity to this situation?

It blows quickbooks out of the water with ease of use and I can do the class tracking that the basic $20 a month quickbooks was lacking.There's a phone app also, I just added it to my phone, so I'm not sure how much I will use it yet other than for reference as opposed to opening the website for details.