I guess this is the way I understood estimating capital costs. 

Immediately I understood for certainThat this troop was the sect of evil soulsDispleasing both to God and to his enemy.From Inferno, Canto III, Dante Alighieri

There are a lot of newbie investors on these forums trying to access the world of real estate and it wasn't until I read all your posts that I understood a little bit more.  

You understood this when you signed the lease.

Growing up doing work on these rentals was not my idea of fun and I never really understood what the point of rentals were.

I have nothing nice to say....I have yet to see a wholesale transaction where the seller really understood he/she was leaving significant money on the table.

@Bill F. understood!

It was getting cold he said ok I also explained to him the outside ac  fan had a Edison summer saver plans which turns the fan off at certain times he under stood but wanted the box off so I called Edison And had the box taken off problem solved .a week after  i got a call from tenents saying they got a message via text from the water company stating continuing runner water possible leak.so I went noticed they were running a swamp cooler 24/7 they said the ac bill was high so weve been using a swamp cooler,and they filled up a above ground pool .i asked them did they call the water company to let them know of the pool fill up they said they didn’t.i called the water company to talk to them about the running water text my tenants got and explained to them  they run a swamp cooler that runs on the water faucet and they fillled a pool ,and all the household water use from  big family.the water company said that’s why there getting that text.they also said that for me to talk about there account water usage they have to call and give permission so I asked the tenants they refused.its gets better,I get another call from the tenants now sayin one of the toilets are making a noise.so thinking the worst I go just a stuck handle.so while I was here I th ought I might as well change out  all fill valves and floaters for all three bathrOoms so I did.was there a few hours making sure they were running properly and leaks.i remind you that was on a  Thursday.on Monday my tenants send me a bill via picture text from  a plumber saying all toilets leaking cleaned out all fill valves because they were clog and put in new flappers leak fixed.i asked the tenants why’ didn’t he cal l me he  had no excuse,so  I called the plumber he said they clogged  and he cha changed the flappers.so i come  Back how’s that if I just put all of that new four days Pryor on Thursday he couldn’t answer me free.now im getting I’m not  paying  my water bill because of the leak.now they sent me there water bill .with previous charges from there old residents claiming it as part of  a leak.do they think I’m stupid,there clearly trying to scam me.they won’t  Give me permission to talk to the water company and  the plumber is his good friend.

@Tim Kaminski Understood completely.

I couldn't find an adopted opinion on this specific topic and I believe this is because the 'dry closing' is understood to be a career ending move if performed by a closing attorney (see NCGS 45A-4).