We aren't slumlords - improved tenants quality of life by ensuring they had heat, nonleaking plumbing, and functioning doorknobs/locks.

As long as your roof, windows and heating system are in good shape, you won't have too much to worry about.

If you are rugged type of person, even the heat is manageable and a non issue.

Well the crime heat map looked like a volcano so needless to say we passed.

Probably not much in gas as they are using electric heat.

When the unit turns on flames shot out of the Heat exchanger .Need advice should l move forward .Rents are 550 each tenants hv 1 yr lease paying on time.Also it’s in a B Area

The units are little dated and tenant is responsible for gas heat in addition to water and electric.

For our numbers sake, we are going to negotiate/plan for 5% down so he at least feels we have some skin in the game.Now, the property. 2 bed/1 bath each side duplex built in 1957, he didn't say asking price but said (paraphrasing) "Zestimate says about $100k but you look at the market and see what you think"...his mentality has seemed pretty carefree about it all.

We did not check to see what water, electric, etc. was each month and just took the prior owners' word for it being "cheap" to heat. 

Have the basement fixed, clean the walls with a bleach spray, put in a dehumidifier and open heat/cooling vents to air out the basement. if that doesn't completely stop it, drylok the walls.