-Should I ask for credits to repair? 

If you plan on keeping it a long time I may wait to fix it but if its something you would consider selling in the next 5 years I would get it fixed as going to sell it you will need to repair it and costs to fix this are not gonna get cheaper as time moves on. 

It is also will allow for experience in managing tenants, repairs, accounting of the expenses etc...plus you get to keep a close eye on the property.

., major systems like plumbing/electrical)Full Gut/Studs Down: $85-$120 per sq. ft.Luxury Finishes: $150+ per sq. ft.However determine the Rehab Costs are only a part of analyzing a deal, you also have to focus on determine the After Repair Value of the property in the specific Area/LocationIf you’re focusing on specific markets and ever want to discuss analyzing deals or strategies, feel free to connect, Our firm would love to help you!

I did this to build rapport I did not need to do this since my landlord in my lease is responsible for all repairs that are not caused directly by me or my guests.

You get built in property management which makes dealing with repairs easier. 

Also, looking at the bigger picture, if this remains contentious, good luck getting him to come back to address any warrantable repairs etc.

Your loan may also be capped at 65 or 70% of the after repair value.

Greenfield is in the next county though so I'm definitely not sure how they are as far as replating etc but i definitely can assist. 

Things like landscaping/snow removal and labor cost for repairs are going to be highly variable based on your market so you'd need to do your own research on the going rate by either talking to other local investors, running your own google search, or exploring basic services on thumbtack/angies list etc.