Someone put a toilet in for me, he used different bolts than came with the toilet because he said the bolts that came with the toilet wouldn't work. He said the floor was rotting but he needed to get under the house and toilet to see what to do about it at a later date. 

He also didn't use the wax ring that came with the toilet, instead putting two standard wax rings under toilet for a better seal, he said. He later told me that there was no flange under the old toilet either. 

What do I do now?