Renting to section 8 / housing vouchers

[Deep Ron]

I am new to real estate , i just purchased my 1st rental house in fort worth, and made it available for renting for about $2100 , i am getting lot of section 8 / voucher's for the house, although i am interested in renting to to section 8 ,  i am confused on what are the minimum income criteria should i look for  ?  most of the calls coming are having only child support  or $1000 to $1700  income per month .  should this be good base line calculation for renting to them .