Advice on dealing with family energy vampires?

Before covid, husband and I had it planned. Stay at in laws property to save for the house (big with our space and rent was cheaper; we live in a tech city), I would finally get hired post masters degree, go in our honeymoon, get our place before our first anniversary and family planning.


What happened was that there was a hiring freeze with the organization I was applying to, husband was furloughed for a while, and we needed to say longer to save up. And we didn’t go on our honeymoon. For the most part, his parents are fine. They leave us alone but his dad was annoying once in a while. My husband and his brother do not have the greatest relationship with him but they tolerate him.
I noticed that throughout the months, he needed constant attention, was co-dependent, he was a GABBER, and most of his conversations were him bragging or showing off somehow. There was always some kind of complaint. He even dumped out his whole issue of how his friend dumped him. As a daughter in law, why would I need to know this? Convos were all about HIM. When I would work from home, he would come in and say, “real quick I gotta tell you this story” and no matter how many boundaries I displayed, HE had the nerve to tell me, “okay. I think you should get back to work.” He constantly assumed things and was repetitive. He started off pleasant but as the months went on, his true attitude came out.
I was raised on old, good fashioned manners. Being polite with assertiveness does not make you weak. I can still be honest with tact (something my husband’s family does not have). I’m simple- If I want to do something, I do it. If I don’t, I don’t. I constantly get assumptions from him with, “don’t feel like you have to cook for us.” Me: I don’t. As a sign of respect (if his parents are home), I just give a quick “see you later”. Based on small talk here and there between us, sometimes I’ll say, “groceries, see you later”. Really not a big deal. One day I told his dad, “gonna work out! See you later” I didn’t tell him my schedule or my day. Simple. He asks my husband all the time, “you guys gohng in a drive? Where?” The other day he approached me (monthly compliant) with, “so I gotta get this off my chest, it annoys me when you have to tell me where you’re going. You don’t have to do that! Don’t feel forced to tell me. You should be telling your husband!” And processed with a lecture (big ego boost for him). I stood my ground and said, “I didn’t explain anything to you and it was never forced. I said 5 words. It was a natural ‘see you later for me’”. So in that moment I had to explain why I don’t need to explain myself (if that makes sense)
I realize later on that yes- he is your textbook energy drainer/vampire. He doesn’t respect boundaries, is co dependent, needs attention, has the need to control and boss everyone around under his command. What he did was love bomb me in the first few months with sugar coated complaints to gain his trust so when he could, he could demand whatever he wanted from me, take a poo on me whenever he wanted to, control. It’s been 2 days and I’m pissed. I feel taken advantage of. My husband talked to him and he was supportive bur at the same time defeated bc he knew all his life his dad was like this. I feel manipulated. I know it won’t get better until we move out. For now, I plan on avoiding him when I have to. Luckily, I finally got hired and will be working from home. Instead of being at home where he would bother me, I asked my mom if I can go back home to set up a small office and work from there.
Any more advice?