I’m midway through a leasehold BTL purchase but seriously considering pulling out.

My concerns:

• The property is likely to have a BSA non-qualifying lease (given its age and set-up).. not confirmed, but even the suspicion worries me because of the future resale/mortgage implications.
• The Building Safety Act feels like a major cloud over leasehold flats in general, with the potential for volatility and long-term devaluation.
• Ongoing government pressure on landlords makes the BTL scene less attractive than it used to be.

When I weigh that against index funds - which are simpler, more liquid, lower tax and far less hassle.. it feels like the smarter move is just to cut my losses on the reservation fee, stop paying the solicitor by the hour and walk away.

What are your guys' thoughts on this?