If it was me, I’d string them along, waste their time, ask for reinspection of Termites if after 30 days from their inspection letter, ask them to provide certified proof all taxes are paid, provide any lien-waivers from work occurring on the home in the last 7 years, require proof of all utilities that they are current, etc. Then after they provide that, reduce the offer by $900 citing the problem....and then drop them from my memory....
Yikes, Gaffer! I’m emailing you before I buy my next house!!
(So, you a fisherman or film type of Gaffer?)