That classic case of "it depends." 

Based on the value of a property you can likely get away with a inexpensive desk top study such as condos and you will require a more comprehensive engineering study for larger properties like a 4plex.Desktop / modeling options are sometimes good for smaller residential like you mention. 

Quote from @Brian Felczak: Everything you need to know is available in books, blogs, the forums, and a little time studying.

Quote from @Homero Matzenbacher: Hello Everyone, My name is Homero I am a student at IU Kelley School of Business studying finance.

This year is the first year I will qualify as a real estate professional and be able to take some aggressive deductions through things like cost segregation studies.

STRs require more hands-on management, but it’s a viable option for reducing your taxable income without needing REPS.You might also consider a cost segregation study to accelerate depreciation on the rental, creating larger upfront paper losses.

Financing is definitely an area that I will need more study.

Study up on warrantable vs non-warrantable condos.One idea I think for a fresh grad, is to find a great RV park operator. 

Study landlord basics, especially on what to include in your lease (going forward you will ALWAYS have a written lease).(2.5 Learn from mistakes and don't repeat them.)

Are the people that give bad feedback on the reviews actually the lazy ones who sort of half commit themselves, put half *** effort in studying the material and submit half cocked deals to Jerrys buying team only to be rejected and when they dont make any money in 30-90 days just get angry and decide they will give a bad testimony on rip off report?