People who aren't willing to pay monthly for their pets usually don't take care of them, so they weed themselves out naturally in the application process. 

In the middle of the escrow the Bank denied my loan application because there is a litigation on the HOA.

There are checklist and applications that must be completed and filed.  

Do not hesitate, to post questions and bounce ideas around in applicable forums.

Do not hesitate, to post questions and bounce ideas around in applicable forums.

Any tips on how to go about  creating the rental application, and analyzing their credit and background checks? 

Once people were done looking and wanted an application, I took down their email address and said I would email it to them.

Final approval of the building permit would be conditional on the approval of the sub-division application. 

Either try to generate her leads or write her a check directly or get a her an Visa/AmEx gift card for a few hundred bucks.  

Look at their profile and then do a little digging.Do they have a web presenceDo they put their contact information on their profileIf you call them and leave a message, do they call you backDo they just have a gmail or yahoo email or do they work for a companyAre they Pro members vs. free And a big one is do they ask for money up front for their services (application fee) vs. just getting the appraisal and credit report covered.Truthfully, I think it's harder to find out if an investor is legit as opposed to lenders/brokers, but I understand how, with all the lenders/brokers out there, they can be difficult to weed through.Good luck,Stephanie