I'm not going to throw stones and tell you what you should or shouldn't do, but the arrogance of your response is off putting.

But then the new tenant probably will throw it away.Should the friend take it to the Post office and let them know to send it back to me?

Cheap yes.Others who market to high equity, long years of owner ship (>15yrs owned, no mortgage etc, age >55) have decent quality of replies. 

I’d cut my losses and sell before throwing more money at a property like this.

We prefer talent and organization over a cheap price.

Every time I feel like I understand this, there seems to be something that comes up that throws me off. 

When my maintenance dude went to the house this summer, he turned on the breaker to the AC and it sparked at him so we replaced the whole panel which wasn't cheap.

There's some good courses on Udemy that are very cheap to start learning. 

Most owners don't screen their property managers and hire someone they already know (e.g. their sales agent) or someone they find online with cheap fees or a slick sales pitch.I offer referrals along with three promises:1.

Most just throw you on some giant mailer list and send you anything from pure sh!