I guess it depends on exactly what you mean by far east county. Are we talking Alpine or Occotillo?
I can recommend some apartments in Santee and Alpine.
In Alpine there is Alpine Village apartments. The outside looks like a motel at first glance, but they are decent apartments for the price. All two-bedrooms in varying sizes. The only downside is that they are very outdated. their website is
Alpine Village Apartments in Alpine, CA - Alpine, California Apartment Rentals | Essex Property Trust
In santee there is a strip of apartment complexes on Graves ave. It is close to El Cajon and right off of the 67. The names of those complexes are Sun Ridge, Sunset Trails, Sandstone, and Greystone Ridge. Sun Ridge is the largest of them all and always has vacancies.