HI, I own a part share of a nice recently renovated house in North London, with other members of my family owning the rest, left to me in my fathers estate, with probate granted in 1999, as a tenant in common.

If you have a flat roof with drains, or a pitched roof with gutters I would ensure either way that the flow of water is un-obstructed most commonly by leaves or pine needles from trees.

Should I try to make the deck on the second floor a common space or as part of a large bedroom?

The more common one is a flat value for the ADU, like they would for a pool or another bonus.

.🚨 Common issues I see:❌ Not properly tracking repairs vs. capital improvements❌ Missing out on cost segregation & depreciation write-offs❌ Scrambling at tax time instead of planning proactivelyI’d love to hear from the group—what’s been your biggest tax headache as an investor?

Do you think it's common for a tenant to sue for an amount greater than insurance can cover, then take your property or even your personal assets? 

For govvy loans, the Due on Sale clause will be available to your note holder - having an LLC take title to the deed (most commonly via a quit claim) will expose you to this clause.

@Jason Sung Yes, this is common.

Is it common to purchase a home with other debt?

Is it common for developers to use subsidies to cover 100% of the construction costs without needing to obtaining debt or raising equity?