So spend NO money on advertising and use that money to make our product stand out.. this has led us to raise our prices Far above our competition more than makes up for it and we sell them as fast as we can build them.. for us thats delivering 2.5 homes per month. 

This ensures that you protect existing tenants from direct competition and support their growth; this will also foster their trust in the ethics in which the property is managed. 

If money’s the issue (which is highly likely), you could offer to cover the advertising costs upfront, if possible,  and adjust their commission by that amount.

The posts also read like advertisements/ something a scammer would write, and the property address somebody mentioned above that supposedly closed in 45 days, hasn't sold since 2006...

There's quite a supportive investor community here.First tip: come to a monthly meeting of ORREIA (https://www.orreia.net/). 

Just by the knowledge, expertise, guidance, and support of a group you are connected to?

If it is block construction the engineers will make you beef up the slab and add piles to support the new weight of the second floor.

You could satisfy any mandatory distributions and also keep within your mission by supporting them.  

I've been seeing constant ads for Baselane, which I'm guessing is newer by the bonus incentives being offered and the amount of advertising.

If you have a high income and can support 2 mortgages with your DTI, then providing a solid LOE for your circumstance may suffice.