I'm looking to figure out a rough estimate on the percentage that can be used for bonus depreciation if I were to purchase in this area.

Crunching rough numbers you need a significant percentage of depreciation in that first year to offset not only your tax liability but also the income of the property. 

There are a very select few who will allow use of the entire lease or a percentage of the difference if the leases have been in effect and you can show payments received for at least 3 months...  

Census data - median household income, employment stats, bachelors degree percentages, crime, vacancy rates, appreciation2.

In that scenario, you would pay PMI for the life of the loan regardless of your equity percentage.

In this strategy, all parties have a vested percentage of ownership in the deal.

Do you have numbers/percentages of what a breakdown of owner occupied vs rental houses in a neighborhood or zip code that you service?

It seems difficult to find a good property management team for affordable percentages. 

@Joseph Hammel,With Solo 401k there are two way to contribute: elective deferrals (which is $20,500 for this year) + profit sharing of potentially another $40K, but it is not a match but rather based on the percentage of your net SE income.

@Peter T. what would you consider a fair percentage for a property manager?