I doubt a typical lease would allow a tenant to add vending machines.

It not only typically keeps you in the same place for too long and not being mobile enough to go to the best market. 

We're typically in Fort Worth and surrounding but would like to network and build some relationships in the Dallas area.

@Keniya LeeWatch for Philly laws but in pa to my knowledge you typically put up a quit or pay notice on 5th and can fIle evict papers on 15th .

What you will find is that there are more duplexes that will attract professionals as tenants than four families: moats have been built as affordable housing in clusters and are typically 1 or 2 bedroom units.

Typical Morris/Oceanpoint situation it appears. 

You typically don't have the opportunity to inspect them prior to purchase, the occupants may not leave, the occupants may trash the place and steal doors, appliances, and cabinets on their way out, or you may discover it's so damaged it needs to be torn down.

Those typically yield the highest conversion rates.

I know there is generally a better rate to be had when putting down 25% vs 20% but what is typical on higher down payments, say between 25% and 50%?

Typical returns are 9-12% plus points if you charge them.