There are separate fee structures for each component (taxes/bookkeeping and legal), and you pay a fee up front and then a monthly retainer.

.—(1) The landlord at all times during the tenancy shall:(a) Comply with the requirements of applicable building, housing, and health codes; or(b) Where there are no applicable building, housing, or health codes, maintain the roofs, windows, doors, floors, steps, porches, exterior walls, foundations, and all other structural components in good repair and capable of resisting normal forces and loads and the plumbing in reasonable working condition.

So the cost to replace a HWH is the same if the rents are $500/mo or $2000/mo -  so on my lower rent properties I use something like this to set my capex Item Cost Useful Life Yearly Monthly Roof $5,000 25 $200.00 $16.67 Furnace $2,500 20 $125.00 $10.42 Flooring $1,800 6 $300.00 $25.00 Plumbing $6,000 30 $200.00 $16.67 Fixtures $1,000 6 $166.67 $13.89 Water Heater $700 20 $35.00 $2.92 Appliances $1,000 8 $125.00 $10.42 Componants $1,000 10 $100.00 $8.33 Structure $10,000 30 $333.33 $27.78 Kitchen $4,500 15 $300.00 $25.00 Window $5,000 30 $166.67 $13.89 Paint $2,500 6 $416.67 $34.72

@Fong Lee  Another key component of your plan will be to increase your credit score. 

This is Paul Esajian and I am one of the owners of FortuneBuilders and Robert I thought it would be good to clarify what you were looking for as our Mastery Coaching Program or components of the program can not be bought on Ebay nor can the program be bought at a discounted price anywhere.

You might try to find a portfolio lender as a happy medium.Definitely have an inspection as @Chad Zaback recommended to determine the condition and life expectancy of all major components and appliances.  

I know this is the case with residential but I am not sure how it would work with the mixed-use component and if you could end up occupying the business portion. 

The current income and asset type of the property is just only one component of the overall investment picture.   

One of the critical components of the budget is putting away money to invest later.  

rental income is simply one component and not always the most important.