The former tenant is upset and wants her full 100% security deposit refunded.

If I got a letter from an attorney representing a tenant out of the blue I would be really upset.  

A seller doesn't want to upset his or her tenants by parading people through the house.

Is it alright that I got super upset with your PM as I read this and wanted to drop kick her through that broken door?

congrats Terri, for your victory that you get your property back.

You'll find that there is no point in getting upset with tenants.

It's one thing if you're intentionally underpricing it (gets you a warm body quickly), it's quite another to refuse to consider increasing the rent when the market interest is telling you you're under priced...because you "know the market".Let me ask you this: If you raise the rents and you get, say, 5-10 people calling you in the first day will you be upset or happy?

As already stated it may upset her, and give more legal rights.

Original tenant called very upset and is threatening to sue not only me, but the tenant she rented to.

Problem solved and the drug users will not be upset at you since you did them a favor.