Certainly the margins are decreasing due to both increased government regulation and market saturation.But professionals like Neil Collins here in Portland, who self-manage effectively, and can deal with government wonkage effectively still have profitable margins.  

Here are some background information to help with his questions. 

We had tons of interest from small families and young professionals because of the size of the home, freeway access, and proximity to the local university and hospital.

Give some background and update your profile like @Rick Pozos mentioned.

Do you suspect the lead pain or has it been professionally tested?

I want to make sure that the engineer's company has Errors & Omissions/Professional Liability insurance.

Most professionals are time poor so you can bring that to the table and get paid to learn.

I am a new investor and have become incredibly frustrated with the lack of responsiveness and professionalism that I have come across.

Long story short... these issues are one of the major reasons we have a good, professional management company for our properties.

Find a realtor that you like and they will find tenants, do the background check, etc. with no cost to you (typically charge the tenants a 1-month fee).