In regards to the vacancies half of the tenants have been there over 5 years and with only one vacancy in the previous two years which if anything shows you the quality of the property and area. 

I'm looking for a best method to market to the Hispanic community.

The price represents the quality of your neighbors and demand for those properties. 7-10k purchase price plus 10-40k rehab....Compared to a decent place that is what?

I know its a popular method, it will vary county by county....

., is with the paperwork and method of offer submission.  

I'll maybe have $1500-2000 in it by the time I'm done, but it's pretty big -- 7x24 -- and it's definitely "custom" quality now. 

My strategy is the BRRRR method (Buy, Rehab, Rent, Refinance, Repeat)

I agree we are in the early innings in Chelsea, which may not be a bad thing compared to red-hot markets like East Boston, but I would be careful of much of the construction quality in Chelsea however.

Digging deeper you would need to look at the following questionsHow is the quality of the neighborhood?

I am absolutely not looking to take any ideas or methods from you, and have done a ton of my own research and I'm looking for someone to talk to about what they found works, and I can the little that I know also.