Leasehold property : London

[LDNrevs]

I've found an amazing buy in London - 4 bed appartment needs work doing - just what I like; so as to add value to it.. thing is, I'm still uneasy about Leasehold places.. I've stuck to Freehold as best I can so far.

This property in particualr has 84 years left on the lease... a question:

What is the least amount of years left on a lease that you'd be willing to buy at/ with a view to selling on within 2 years. I know 99 years up is standard and anything less than 40/50 becomes an issue and something to barter the sale price down over.

Anyone with any experiences with Leaseholds in London; any nuggets of advice!?

[LDNrevs]

Thanks for the points guys.