CT Newbie - Looking for repair estimate advice!

[Champagne Goldston]

Hello Everyone,

I'm a newbie to real estate investment, and am looking to "House Hack" a 3-4 multifamily by 2020. My target county is Hartford (Manchester, E.Hartford, Hartford New Britain). 

Can anyone offer insight to the repair / maintenance costs of leasing properties in these areas?

Also, what steps should I be taking to thoroughly vet potential tenants?

Thanks in advance for your help!

Mortgage

Taxes

Repairs

Gas

Electric

Snow

Lawn
Sewer

CapEx

Vacancy

Garbage

Water

Anything else!