I'm not a liver specialist or a doctor, but after studying about this complex disease of chronic hepB on the internet, and from my own personal experience with the disease I would say YES there is a link to hypertension. I'm, for example, taking a daily hypertension medicine to control my blood pressure and has significantly helped me.
Chronic hepB is a very complex disease which has highly variable prognosis based on multiple criteria. According to the web page that I will link below, "Extrahepatic manifestations, which are thought to be mediated by circulating immune complexes, occur in 10 to 20 percent of patients with chronic HBV infection." And "The two major extrahepatic complications of chronic HBV are polyarteritis nodosa and glomerular disease."
PS. This is not to scare you or anyone else but I think it is good to learn about living with this highly complex disease.
Here is the link:
https://www.uptodate.com/contents/clinical-manifestations-and-natural-history-of-hepatitis-b-virus-infection#H13
This is a funny post, but not funny. The reason was because my blood pressure went up on my last visit and is the highest I have ever seen it. I need to diet and exercise more though, so we'll see in 6 months. But during treatment these past few years, I've typically been within normal range.
As u said it is familial. However I r athletic so it should be normal. Reduce Ur salt intake and avoid junk an oily foods. No till 140/90 is considered normal. If it is exceeding that then consider going to a doctor.