NewBrummie you may not intend to but you come accross as someone who knows very little and who flies of the handle very quickly.
I have been a tenant for many years due to some unfortunate circumstances. Off course when we rent is it " our home" not our landlords (or landlady as this one prefers to be called) it is their property OUR home..
Yes you get attached to a home. We lived in the last one for almost 9 years and did really love it and was sad to go. Despite having always known that we would have to when our then landlord returned from living overseas (Sadly 2 years before we had thought due to his current job)
If your contract doesn't mention pets no they dont need to ask permission.
Our last said no pets. Landlord allowed fish and a rabbit when we asked.
New place says pets to be agreed with landlady. (we no longer have any)
In both cases if we had taken in pets we would have been in breech of contract. If it was not mentioned in the contract we would not have been in breach to get a pet (even if it was a giraffe)
With regards to the deposit. There are strict rules as to what can be taken off and it is not the landlords decision what can and can not be taken off. if you do not get what you expect then no you cant " simply sue the guarantors"
No you do not need to allow viewings. There can be plenty of reasons as to why to say no. Many years ago when dh and I were renting from a friend we said no viewings until after we moved out due to my being very sick and I was not ok with people walking into the house. (it sold a month after we left so he was not out of pocket much)
It does not automatically mean that the tenants are being difficult.
Speak to them and simply ask for them to clean up the dog mess before vieiwings and prior to leaving.
As a tenant I have never cared about inspections APART from when they give me 24 hours notice. That I did care about. My work simply can not accommodate that. Previous estate agents got very arsy with me over this. (however could not do much as I had every right to say I didn't want them in the house without one of us present - we never refused a viewing just said we wanted it at a time one of us could be present) Current agency called and asked when would be a good time. - worked well for us both.
however if you want to sell I suggest you simply speak nicely to them and you likely will find that they will leave quickly and without much of a difficulty for you.