So while that’s a great asset you pay more for it typically.

Typically, higher income areas have lower crime, more amenities, better schools.  

I wouldn't bet my life on 50%, but I would bet they are more problematic than the typical long-term renter.

There are companies such as Cover that offers a full service ADU deliverable from design through construction completion.

I won't say how many offers we make on properties for ourselves or clients in a typical week. 

Make sure it explicitly explains the process for termination if you are unhappy with their services, especially if they violate the terms of your agreement.3.

I charge a completive market rate while providing a really good service. 

It may feel cumbersome, but their diligence reflects the level of security and service you can expect once onboarded.

I was also wondering if they have any value added services for looking at deals. 

Quote from @Jeffrey Hill: There are a couple of challenges with financing the difference. 1) The current servicer has to approve it. 2) Finding a lender to do a 2nd mortgage at 100% CLTV is almost impossible.