HELP!! Uneven subfloors in my first rental property

[Jaron Smith]

Hello all, 

Ive recently purchased my first rental property ( a triplex) and have discovered uneven subfloors. The house is 100 years old and i do not suspect foundation issues.. The floors in two rooms had a wavy look to them and I used a combination of 1/2" plywood and self leveling compound to get them leveled up (They were out about in inch from each other in some spots.. 

My question is, in the bedroom I find that although all the work ive done to level out the room, it is still out 1/8-5/8 here and there.. there are no dramatic low or high spots, just a slight climb or descent.  Should i just carpet? I dont want to but i also dont want to put down a type of flooring that will fail because of an uneven subfloor. The rental is in a c+ neighborhood so I am looking for a cost effective approach and to decide ASAP.  Please let me know what you think!