My listing agent's company is in direct contact with the asset manager on this property, and she at first said "maybe they made a mistake." 

Many people here have and end of financial freedom in 10 years or 5 years so what works for your end would not lead to their end.My biggest mistake was to not have better more lofty goals.

Is this worth it or should I find a mentor or just get started and learn from my mistakes?

You asked about my two favorite topics, Real Estate and Personal Finance.To answer your question, yes it is a mistake to not take advantage of her employer's 401(k) match.

I'm coming into my 4th year and to say that I could write a book about my triumphs and mistakes over these years is an understatement.

I can see an occasional mistake, but you said it was pretty much everywhere?

I would like to purchase more multi-family homes and I am interested in learning from other's mistakes as much as possible :-).

I think it may have been a mistake lowering the rent.  

You will save thousands in avoided mistakes.

From not having a lawyer review a lease (that one cost me about 100k) to not getting correct sale paperwork written up (that one hit me aboutu 10k AND resulted in a tax lien) -- if there is a dumb mistake I have probably done it.