Can someone recommend me BL manga not with high school boys but something older, but not s...

hairstylist: http://www.mangago.me/read-manga/renai_rubi_no_tadashii_furikata/
http://www.mangago.me/read-manga/beauty_stock/
escort/host: http://www.mangago.me/tag/escort%2Fhost/
housekeeper: http://www.mangago.me/people/tag/83677/housekeeper/
college/uni: http://www.mangago.me/people/tag/83677/college%2Funiversity/

http://www.mangago.me/read-manga/ai_no_binzoko/

This authors - http://www.mangago.me/read-manga/one_piece_dj_the_delicious_soba_is_being_by_your_side/ - mangas about Zoro x Sanji are so awesome... great plots! I haven't even read One Piece Manga but I fell in love with Sanji and Zoro pair XD
Rom - 13 - Nari is the author :) Good yaoi :)

http://www.mangago.me/read-manga/kimi_dake_ni_focus/

http://www.mangago.me/read-manga/reply/

http://www.mangago.me/read-manga/datte_maou_sama_wa_kare_ga_kirai/

http://www.mangago.me/read-manga/aiso_tsukashi/

http://www.mangago.me/read-manga/i_want_to_become_your_bird/

http://www.mangago.me/read-manga/merry_checker/

http://www.mangago.me/read-manga/aozora_no_sunda_iro_wa/

http://www.mangago.me/read-manga/nikushokujuu_no_table_manner/

http://www.mangago.me/read-manga/yozora_no_sumikko_de/

http://www.mangago.me/read-manga/black_sheep_down/ priest x soldier
http://www.mangago.me/read-manga/sumanai_masumi_kun/ novelist x editor
http://www.mangago.me/read-manga/mazu_wa_ubaiai/ doctor x doctor
http://www.mangago.me/read-manga/beast_feast/ policeman x yakuza
http://www.mangago.me/read-manga/uchi_no_tantei_shirimasen_ka/ detective agency co-workers
http://www.mangago.me/read-manga/iro_wo_mo_kaori_wo_mo/ hotem manager x incense maker
http://www.mangago.me/read-manga/meikon/ doctor x doll maker
http://www.mangago.me/read-manga/hachimitsu_darling/ vet x assistant
http://www.mangago.me/read-manga/tenki_yohou_no_koibito/ newscaster x weatherman
http://www.mangago.me/read-manga/boulange_no_koibito/ baker x customer
http://www.mangago.me/read-manga/ameiro_paradox/ photographer x reporter
http://www.mangago.me/read-manga/hana_koi/ rikshadriver x rich heir
http://www.mangago.me/read-manga/the_4th_guard/ security company
http://www.mangago.me/read-manga/i_d/ policeman x forensic researcher
http://www.mangago.me/read-manga/kimi_no_tsuku_uso_to_hontou/ lawyers
http://www.mangago.me/read-manga/dakenai_jikan/ soccer player x team owner
http://www.mangago.me/read-manga/secret_flight/ pilot x flight attendant
http://www.mangago.me/read-manga/kekkon_dekinai_otokotachi/ restaurant

maybe you`d also like my celeb list
http://www.mangago.me/home/mangalist/11758/
some of them are still in highschool though...

Hmm try these:

http://www.mangago.me/read-manga/puchitto_hajiketa/

http://www.mangago.me/read-manga/koisuru_boukun/

http://www.mangago.me/read-manga/sex_therapist/

And what do you mean by salary men? Please be more specific so I can give you a list of manga series you might miss out on :)