The phrase "and so avoid the" is correct and usable in written English.
It can be used to indicate a consequence or result of an action that leads to the prevention of something undesirable.
Example: "By following these guidelines, you can streamline your process and so avoid the common pitfalls that many encounter."
Alternatives: "thus prevent the" or "thereby evade the".
Thanks to his influence, the youngster was able to join the People's Liberation Army at 15 and so avoid the worst deprivations of the Cultural Revolution.
The plan, clearly, is to get ahead of the curve and so avoid the need for full-blown quantitative easing (QE), something Germany and its allies oppose.
One possibility is that Trump is waging a campaign to drive Sessions out, and so avoid the Nixonian fallout of a Saturday Night Massacre moment.
While agreeing that more roads are needed, the commission wants the central Europeans to reverse the decline of their rail networks and so avoid the traffic-jammed fate of their western counterparts.
Some wore T-shirts with a huge cut-out of Leonid Slutsky, the Russian coach who before the game insisted that the fans would behave themselves and so avoid the penalty of disqualification that Uefa had hung over their heads.
He's seemed less keen to mention the need to at last bring London into line with European Union limits on airborne pollution that harms human health and so avoid the UK government being hit with a fat fine.
Turning them off stops the phone or computer from connecting to the broken server, and so avoids the issue.
They would spend the war as guests of Yale University, lodging with local families and so avoiding the bombs.
Korchnoi judged that it was too early to reduce to a queenless endgame, which would permit the black king to come up and augment the defense, and so avoided the exchange.
This thought did occur to the Jews, whose families (many of Lithuanian origin), had fled European pogroms and so avoided the ditches to which Hitler's Einsatzgruppen would have dispatched them.
