Lots of advice so far in this thread, but I figure the best way to get the info you need is to make an appointment at the vet clinic for a consultation or whatever you want to call it.
hey my spayed 3 year odl femal marks her territory 50 times a day (alpha bitch ) outside only though shes such a nice dog but drives me nuts when i see her backing into grass piles like a cat lol and the odd time she actually lifts her leg ha ha ha ha