Older electrical is not something you need to disclose as long as it is safe and functional, and asbestos insulation would probably be grandfathered in.

It is currently under renovation, which will allow for a more functional a productive office space for our employees, and a conference room for team and client meetings.

There's an argument for "Functional Obsolescence" of small B- to C class office buildings.

So Grant/Mitch have since disappeared...Folks, it is NOT a sustainable / scalable model seller financing houses to occupants.The worst example I even hear of today from medium sized investors here in GA, as of 2019, is doing the work for equity gig;  buy junkers that are not habitable (no heat, or no functional sewer system, or no servicable electric system, or solid roof) and seller financing a $30k house for $50k work for equity. 

We use Innago, very similar to Cozy in terms of functionality and simplicity.

@Brian Fuerle Another thing to keep in mind - Massachusetts, and maybe NY, hires "testers".The sole function of these people is to pretend to be a buyer or tenant and to trick you into saying something that they can claim is discriminatory.I talked with another agent a few weeks ago. 

If it is there and functioning and they just want an upgrade they are free to do so. 

We added value by updating the furnishings, integrating systems, raising prices, and improving the overall functionality of the house as a business operation.

Quote from @Nicole Allan: I am new at being a landlord It's hard to give directions without knowing where you are and where you want to go.Generally speaking, you want everything functioning well and clean.

There is a inverse relationship between rent and pain in the ***   With higher rents, you tend to get more functional adults.