But my question is that if we consider other operating costs like maintenance, capital expenditure, vacancy, etc then this property won't cash flow, so is this a good deal?

We'll go check out the operations. 

If your leasing application process is thorough and well thought out, and if your lease agreement has been well drafted by your local attorney and if it includes clauses that permit you/your property manager enough latitude to maneuver and anticipate undesirable tenant behaviors, both actions and inactions, and you have operational processes which align with enforcement of your lease, then you've done all you can do to reduce this inherent risk of an undesirable tenant.  

Long-term leases are less operationally complex and face fewer regulatory risks - more stable and scalable option.

He is one who sold me overpriced house.although I will say fault is mine as I did not do due deligence.

So we had it on our personal return last year and i won’t detail it but it was a bit sketch when we had to provide financials (we can redact mine but not hers long story). 

A friend of mine suggested that I consider beginning to invest in small multifamily in Belleville, IL market.

@Camille Romero Operating a rental property out of state, especially just 1, can be very difficult and costly.

Portland ME is a favorite of mine.  

Most of mine renew in October and February, and none have been pretty.