Lebanon is a challenging place to travel for those with disabilities. Pavements are uneven and often in disrepair, while public transport has no wheelchair access. At time of research, there was no wheelchair-friendly taxi company in Beirut. Few hotels and very few restaurants and bars have accessible toilets.
That said, the Lebanese are extremely welcoming to disabled travellers and will do their utmost to assist.
The main NGO dealing with accessibility issues for the disabled is the LPHU (www.lphu.com). Though their website is exclusively in Arabic, they will respond to requests for information via the Contact tab.