Hi Jackie and welcome to Belinda's Forum! Thank you so much for your question. Team BG here!
I have to say that I agree with the other posts about finding out why the tenant is in arrears. When Belinda used to manage her own properties (over 18 years ago) she used to be very clear that it was a 2 way relationship and if they had any problems with paying their rent etc. they should contact her straight away so they could move forward together, maybe with a payment plan. Is this something you have explored? So many tenants are scared of approaching their landlord as they think about the worse case scenario, so they bury their head in the sand.
Also, double check what is in your Tenancy Agreement because if you do go down the section 8 or section 21 route, you will need to show a copy of the agreement. You may have heard how judges have ruled in favour of the tenant if you have not adhered to your responsibilities in the Agreement.
Funnily enough, Belinda has been asked a similar question on her "Live a Bigger Life" Facebook page by a lady called Rachel who wanted to know about howsheI coped with stressful tenants. The video below for you. I really hope this helps.
https://belindagrashion.wistia.com/medias/p7juluqkw1 Hope this helps!
Live the Life you Love,
Team BG! xx