I would be curious if there were any authoritative sources provided and maybe I'm off. 

i don't invest in STRs myself but i always get nervous when people want to get into them solely to offset taxes. 

He handles sourcing properties, setting them up and managing them as well. 

It sounds like you have a really unique niche, sourcing international deals in the Dominican Republic.

Google reviews are not a reliable source of information for property management companies. 

. - Closing costs are likely to be higher- DSCR loans cannot be used for distressed properties; it looks like you have the order reversed; you will need to rehab the property first, then get a DSCR loan afterFinally, the returns in rental real estate are not solely from the monthly cashflow.

I'm a wholesaler in the Philly area (and surrounding counties) that sources off market properties to investors.

I'm sure this varies by market, but we screen section 8 exactly the same way as any other tenant, they just have a different income source. 

Check out this chart: FICO Score Pct of Population Default Probability 800 or more 13.00% 1.00% 750-799 27.00% 1.00% 700-749 18.00% 4.40% 650-699 15.00% 8.90% 600-649 12.00% 15.80% 550-599 8.00% 22.50% 500-549 5.00% 28.40% Less than 499 2.00% 41.00% Source: Fair Isaac CompanyMake sure you understand the Class of properties you are looking at and the corresponding results to expect.Metro Detroit has 132 cities, the City of Detroit 183 Neighborhoods, which we’re analyzing and classifying.Horror Stories:https://www.biggerpockets.com/forums/48/topics/1137397-baltimore-a-path-to-never-ending-painhttps://www.biggerpockets.com/forums/432/topics/1231840-sell-at-a-loss-or-rent-at-a-losshttps://www.biggerpockets.com/forums/311/topics/840134-memphis-turnkey-tenant-turnover-costshttps://www.biggerpockets.com/forums/963/topics/1195280-experience-of-oos-investing-in-cleveland-after-15-years

Not only your risk is minor with wholesaling, but you 'll also benefit in the process from the following:1) Acquire essential skills of sourcing off-market deals and negotiating with sellers2) Get access to nice chunks of cash through your assignment fees3) Have an opportunity to tap in to any market throughout the US4) Build a network cash buyers and other industry professionalsAnd perhaps more.