In order to get the attention you want through online ads (which last I checked Facebook ads require such a wide range for the demographic that it is almost not worth it), you would likely need to spend literally thousands of dollars. 

Create an Online Presence: Build a strong presence on Facebook, Instagram, and a credible, professional website.

If piti is $1100 and rents range from $1000 to $1200, conservative underwriting would use the lower of the rent range, we have $1100 rent - $1000 PITI - $120 PM  - $50 (vacancy) - $300 maintenance/cap ex - $50 misc (tax man, asset protection, book keeping, utilities that are not tenant responsibility such as for a slab leak, etc) is about negative $420/month. 

It should be on line, look it up.

You can find ways to save in places that people won't utilize as much

HH properties (and often HH clients) are high resource utilization accounts for a PMC, so many PMCs won't take them on, or will only take them on with the understanding that the property will be converted to a single-lease property (we do still use this approach.) 

@Helene GoodworthTo expand your network, identify your areas of interest, highlight your construction skills' application to investment projects, actively participate in local and online groups, and seek mentorship and guidance from experienced investors.

I think I can get a policy online with the other requirements, but this waiver seems to be more difficult to find.

There are some places online too that have cookie-cutter blueprints too that you can check out as well!  

Would you care to share the names and contact info for people you may have utilized to make the returns visualized in your post available?