Hello, YuriArcurs, your prepared patent applications can be edited, formatted, and filed with the U.S. Patent Office for an initial fee of $255 per application. The remaining prosecution effort, including responding to Office Actions and dealing with allowance of the application, would be covered by the balance of the $1500 you reference.
I have over nineteen years of experience as a Patent Attorney working in electrical, electronic, solid state devices, web-based applicationa, GPS, mechanical, software, MRI, laser systems, and optics, so I should be able to provide you with the assistance you require.