@Jon L.Your questions 1 and 4 in the survey are not something a lot of investors would want to provide... breach of privacy etcFor your question in the post here about the most frustrating part, for me plenty of frustration around contractors... finding quality ones, finding ones that haven't taken on too much work to where they bring in inexperienced guys to cover their multiple jobs etc

., your question is very broad and without context, no one can provide a specific response.  

They are professionals and know how to incorporate this as part of the closing process.This is from my experience only and in the states I operate. 

These are professionals with additional training and a stricter code of ethics.

Some areas have specific departments or webpages dedicated to housing or zoning regulations that can provide detailed information.Another effective approach is to connect with local real estate agents or property managers who specialize in short-term rentals.

Additionally, I have a "Notice to Vacate" section in my non-standard rental provisions indicating that tenant and landlord must provide a 2 full calendar month notice to vacate. 

What kind of services do you provide?

What other investment can provide  8-10-12% return?

., that the provide. 

You simply call your 401k provider and let them know you are trying to borrow money to use as a down payment for your home purchase.