Jason,They'll do an estimate of the repairs and you can start with that, BUT I would urge you to get a contractor you trust involved and then they can discuss items back and forth.  

There's a long checklist of items to prepare before you start your direct mail campaign:1) Is it scalable (manual letters aren't) 2) Are you using your time in the most efficient manner (handwriting is ok for starting, but you need to hit 1000s of targets to get the responses to grow your business) 3) Is your message correct for that market?

Most of them are $10 or a bit more with extra digital items included, and it's very easy to add your info, brand the colors and then upload it to Dropbox.

They will provide you with a list of items, do them.

But like you mentioned, don't forget guests need room for their items too.

This places a would-be investor into the same food chain as the hapless tenant who depends on both rent and government subsidies for financial survival.

Just as some updates to the area as food for thought.

This leaves the tenants extremely frustrated, especially if it's a refrigerator issue causing their food to spoil, or possibly an issue with an appliance leaking water onto the floor, etc. 

That includes planning for and anticipating large repair items and having a reserve for that.

From my experience (I could be wrong) there isn't a format but the estimate should list details like the materials to be ordered and the hours of labor needed for each repair project (for example the kitchen cabinet installation or exterior doors) along with a cost listed for each line item.