In general, the minimum loans I've seen are 100k (individual properties can be lower if you are buying multiples from the same owner but the loan still must total 100k-ish).

You have told us nothing of your specific situation and why you are asking these questions.I typically deal with investors on NNN type properties where net worth as an individual is 7,8,9 figures.

Welcome to BP, I'm sure you'll connect and learn alot from like-minded individuals here.Which investing strategies are you interested?

That bathroom you mention may have to be torn apart and redone, it depends largely on the individual Inspector that you deal with.I would go to the County/City Building Dept counter and talk to them in person.

Surround yourself with like-minded individuals who are at a similar stage in their investment journey, or seek out those who are 1-2 steps ahead.

Use 20% to calculate individual performance  

These platforms do not get involved in the transaction beyond the connection, and so any liquidity options and investor may have are simply what that sponsor has or has not offered in that individual fund/deal.

Are there any potential problems with investing as an LLC and not as an individual? 

If the returns are so good I would assume they could target higher net worth individuals, and the fact that they cobble together a bunch of beginners $50k investments is a red flag for me.3.

Who do you use for individual SFH policies or commercial policy that could write a portfolio policy?