So they have to tread lightly/smartly in order to get paid! 

when I first started lending in Detroit in 2002.. the rehabbers there would paint the copper in the basements with grey paint in the low light theives would think its galvanized and not take it.

Do you need cash flow from it for income or will light to no cash flow work if you can groundswell appreciation on a good asset?

Something light and neutral. 

CAn some one shed me some lights on how foreigner can invest in Duabi, which firms that I can go through, who are reliable and keep my investment safe and able to get some decent returns, and what are the tax consequences for earning potential from outside the country?

I added a pool and did some landscaping and have been using it as a family winter retreat and renting it to a STR operator the rest of the year.

I will also admit at this point we are comparing apples to light bulbs since RentRedi was only costing me $59 per month and DoorLoop will cost $200+ per month and for those that have a lower unit count and only need basic services the RentRedi cost should outweigh the beta tech.

I may have to Teak my strategy in light of the excellent advice you provide here, Henry.  

Getting the information takes time and experience but once you have it you'll be light years ahead of others who are just starting out. 

Even though your Realtor might be good and helpful their ultimate goal is to get the house sold and no one will see the vision you have set for yourself, in the same light that you will.