score:7
You cannot just change your situation overnight. In my opinion you will need to give it some time, at least a year.
You canβt just change your duration of stay, it will looks like you are just saying anything to please them.
Your family ties are not going to change, your family claiming asylum seriously undermines you. I see another refusal if you apply anytime soon. They are reasonable in concluding you will also seek asylum to be with them. If you will reapply do not apply with your husband, you need him to be back home to show strong ties to your home country. It will help if you have children at home.
Regarding the duration of stay I see nothing wrong with it. One month vacation is very normal. I just believe they threw that in there just because they already discredit you due to the family asylum issue.
Can the location of the VAC affect the decision?
Yes, but itβs likely not statistically significant. Same way approval can depend on which particular visa officer reviewed the case. Some are more accommodating than others but overall not much different (at least in theory).
Conclusion
Donβt reapply immediately. Even when you wait for some time and reapply, use an immigration attorney.