How much should pet security deposit be? in Maryland Elkridge

[Kenny Ness]

Hi all I own a Condo I rent out in Elkridge Maryland 21075.  Im currently looking for a new tenant and i have one from the miltary that has two small dogs 10 LBS and 18 LBS. i normally say no to pets but its now been two months looking for a tenant and I like how this person is form fort Meade base because i know she will be able to pay rent each month. I have two questions.  What amount of pet security deposit do you recommend and how long does it topically take to find a new tenant in MD for you?