I requested the last 3 years of their Tax returns, P/Ls, and balance sheets.

What I mean is...they don't get tenants to over pay and thus the tenants can't afford to stay there long term.

He claims that "it's not fair" since I didn't pay for the back part of the side fence. 

Keeping their taxable income down is a huge advantage for you as paying that from the sale would not be the most fun, although maybe I am incorrect since the property was inherited. 

(This allows us time to raise rents plus appreciation over 5 years to then do a portfolio refinance to pay back the line of credit). 

Here's some guidance on buying your first investment property in Southern California or Columbus, Ohio:Down payment:For investment properties, lenders typically require 15-30% down payment on your first investment15% down is possible with excellent credit (700+ score)20-25% down is more common, especially for multi-unit propertiesSection 8 considerations:Pros:Guaranteed portion of rent from governmentPotential for longer-term tenantsMay be easier to fill vacancies in some areasCons:More paperwork and inspections requiredRent amounts set by local housing authorityPotential property damage concernsOther tips:Research local markets carefully - price trends, rental rates, etc.Factor in all costs - taxes, insurance, maintenance, vacanciesConsider starting with a single-family home or small multi-unitBuild a team - real estate agent, property manager, contractorsHave cash reserves beyond just the down paymentUnderstand landlord-tenant laws in your chosen locationI'd recommend talking to local real estate agents in both areas to get more specific market insights.

:) You have a high paying job as a physician. 

In our nicest house we have Tenants that pay 2 weeks early, been there for about 4 months.

Investing in real estate pays you in 5 ways appreciation, depreciation, cash flow, amortization, and inflation profiting.

Rent is at 2300 with Mortgage, taxes and insurance at 1700.