Advice please

[Tre Mcfadden]

O.k i've been lurking and posting here over a year now but im a little nervous about taking the plunge. Heres my situation, i have 45k, terrible credit, monthly income of 3500 as of april 08 (new job). My thought was to buy a 3 bdr house for 24-30k in a mediocre area.....clean it up and rent it out then possibly continue until i have reached my goal (15-20 properties). please help with any advice but try to stay on topic thx.