Ok I have a two bath mobile home. One bathroom in the front of the home one bathroom in the rear of the home. I am having an issue of when someone flushes the front toilet it bubbles or pushes water it the bowl of the rear toilet. Giving a wet butt or wet seats. Also the rear toilet loses water from the bowl. When I was on my roof for the first time after buying the home the vent (stink) pipe over my front bathroom had been cut flush to the flashing shield around it and blocked off. I have not yet checked my other vent (stink) pipes yet for any blockages. Any suggestion or solutions to my problems. Thank you in advance.

The first thing I would do is unblock the vent.

I agree with Harold. Get that vent open and operating. Contact us when the vent's repaired and if there any other problems we can address them then. Good luck, Tom