flinter, welcome to our website and forums. We are glad you have decided to join us. You should everything checked over. It is called a PDI (pre delivery inspection) There are many safety issues and then many more general issues you want to be sure are working, the roof is not needing maintenance and so forth. Are you buying from a dealer or individual? If individual you may want to find a mobile RV service that is recommended by other RVer in the area to do this service for you. The dealership should do this before you take delivery but I would recommend you request that it be don and that all systems are operating properly and all maintenance is up to date. Then make sure they give you what is called a "Walk Through"; this will orientate you as to "how to" and where everything is.
Good luck and keep us posted.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7