My uncle once said " Never take all the money off the table... when everybody eats well...it breeds LOYALTY.

You absolutely can. In

Try to minimize vacancy as much as you can. In

They mentioned they might need to allow these people to move in and we sent them info about increasing rent, having to change the lease to reflect dog (didn't know breed at the time), adding them to lease and that we would require a non-refundable pet fee.

I'm trying to soak up as much info as I possibly can! In

Some breeds to know they got away or get their way sometimes so they obey when it matters).So, I'd suggest the buck stops in management of the tenant, not the tenant, not the dog. :)  

You can find a real estate agent that is an investor themselves, or at the very least specializes in working with investors full-time (they are a rare breed).c.)

My goals are to meet/work with as many people as I can in this industry!

My suggestion would be spend as much time as you can in this website to learn.As a newbie myself, it looks like ocean of information to be absorbed in BiggerPockets.

There is usually a long story behind a lien... since it costs money to everyone.My recommendation is to obtain and record everything you can in writing or emails if you get targeted by the HOA.