Roy Cerise

First i wanted to mention that i just started working with Maya and blender a few months ago and have been learning on the fly, and im still not very fluent with the creation process, so please be kind with me, I have been working on some objects that i want to import into the game but having exporting issues, I once saw a page that had a exporting guide of things that need to be done in the programs like maya and blender before i needed to export it, but i cant find it anymore. And second thing i wanted to mention was when i had exported a basic box style stairs out of maya using collida dae/fbx export i would get geometry errors then when i import, it imports fine at first but when i log out and log back in it reverts to a sphear model im not sure if it has something to do with the export or something else Can someone please help i would be very greatful!