Always remain on a cordial yet professional relationship with your tenants...

Personally, I would go with the former tenant, AND have them hire a professional cleaning company to clean the house after they move out.  

I spoke with one guy that seemed very professional and respectable that offered to take a serious on-site look through my project and advise me for $500, prior to potentially putting together a plan and coming on as a general contractor. 

I really want to come across professional when i send out the letters.

I've seen examples of professionally written "Finder's/Referral Fee" contracts for real estate, and have heard of cases where these have been successful, but haven't been able to get in touch with anyone personally who has experience in this area so far.

Hello everyone,I recent acquired a fourplex in fort worth area and hired a professional property management firm to manage my property.

Im about to get my professional engineering license so i understand why real estate looks better than engineering.

I'm on a lot of wholesalers lists, but the numbers 99% of the time are laughable.My goal is to really get in front of people because I think my biggest strength is building rapport and connecting with people.

Consult with your tax professional (CPA, HR Block, etc.) for the exact definition of these and what you should do. 

Most professional investors don't even touch inverse ETFs because they are notoriously hard to value and offer little to no benefits as investments.