Reviewed

Name: TR_Narsis_53_Lower
Clean: yes
Lighting: settings good, the lanterns in the middle of the table are both causing greenlight, move the top lantern away from the center of the table and it will be normal light. swap the lower lantern for a lower radius version.
Northmarker: incorrect, check the ext
Fits exterior: yes
Pathgrid: mostly good, lower floor path nudging into doorjam straighten to preven NPCs getting stuck
Illegal to Sleep Here: yes, correct
Gridsnap: Neither 64 or 32, to bring this onto the grid select a tileset piece with gridsnap enabled then crtl = drag select the rest of the interior and move it slightly that will bringit back on grid. This will be required espeically since there are shell isssues, as outlined below.

Bleeders:
misc_com_plate_01: bleeding slightly into shelf

Floaters:
misc_com_plate_01: floating slightly above the table
misc_com_basket_02: floating over shelf
com_sack_03_chpfood5: should be bled more into the other sack

Other: 
*Given this is a lower floor and you dont have anything beneath it, this should be using the vanilla stair piece to add pillars and railing., which means reconfiguring other parts of the upper shell.
The pipe and botttle of skooma should be moved from behind the bed, so that they can be spotted in-game (that angle would require the player to stand on-top of the hammock to see them
Remove the sack betweeen the crates so players can look down into the open one.
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Name: TR_Narsis_53_Upper
Lighting: seetings good, simmilar situation with the lantern and the table, but in this instance you want a lower radius source, light_de_candle_04_64 is a solid pick for those round rables.
Northmarker: as above, check against the exterior
Fits exterior: yes
Pathgrid: good
Illegal to Sleep Here: yes, correct
Gridsnap: Gridsnap: Neither 64 or 32, to bring this onto the grid select a tileset piece with gridsnap enabled then crtl = drag select the rest of the interior and move it slightly that will bringit back on grid. This will be required espeically since there are shell isssues, as outlined below.

Bleeders:

Floaters:
bk_onoblivion: floating on shelf
Light_De_Lantern_01_128: partly floating on the shelf
misc_com_redware_bowl_01: floating slightly on shelf x2
misc_com_plate_02: floating slightly on shelf x2
com_sack_02_chpfood3: needs to be bled into the floor

Other: 
replace common_robe_02_rr with another robe (RR is the redoran abreviation, a lot of vanilla clothes are marked like that), also bring it more forward so its visible from a player looking up

An ambitious first attempt, got a lot to work on. Fixes aside, because this is a claim I want to see some TD clutter added to this, maybe swap some plates and cups for ones from TD sets instead of fixing, just get in the habbit early. Feel free to ask further advice on the discord,.