Condo leasehold 30 years (or 90) issues

[Agusts]

I see most foreigners try to buy a condo with freehold title, so they can fully own it. But there are many good offers for leasehold too, I'm not too concerned about financial outlook of it in 30 years - won't last that long and not worry about it..., but I want to know what are the pitfalls of this scenario until then, either leasing directly from condo management or private Thai owner...!? 

 

I'm told they can demand more common fees, or other fees while can not from freeholder - odd to me, as if increase for this is approved it applies to all condos...!? 

 

Otherwise what right might not have, like if I want to replace toilet, or the sink or kitchen top, could they refuse permission....? While not if it was freeholder... 

 

Could they cancel the contract altogether...? After all it's like a long term rent..., would there be any compensation that worth it... (say in 10 years the rental or value could double, and they prefer to kick me out and sell or tent etc..)...? 

 

Anything else come to mind...