Really depends on how you structure the deal. 

We do turnkey in Birmingham and we focus solely on B/B+ properties, which typically run from $65k-$120k depending on the property and the locations, average rent of $950, so we know the area well.

A particular loan will require that but it depends on your financing choices.  

@Nathan Estochen it also depends on the contract you guys signed.

The formulas you use will depend on your strategy too.

Depending if said mobile home was surrendered to DMV and now is an improvement on land and not movable. 

Depending on how bad you need the extra money handle the grass issue.

Depending on what coverage the HOA provides in your condo docs, you could probably adjust the maintenance and capex numbers to 5% each.

You may need to buy 2-3 homes commercially to meet their minimum loan size criteria depending on the bank.

It will depend on your experience.