We financed the Bristol St deal using Partner Driven's capital, covering the $167,000 purchase price and $41,000 renovation costs.

Spectrum has raised their costs double and I was considering asking him to take care of  his own internet costs and finally,  How much of a notice is normally required, in writing?  

During the Due Diligence Period, the Buyer shall have the right to conduct, at its sole cost and expense, any and all inspections, examinations, appraisals, surveys, environmental assessments, and other evaluations deemed necessary or appropriate by the Buyer.Financing ContingencyThe Buyer's obligations under the PSA shall be contingent upon obtaining financing in an amount and on terms satisfactory to the Buyer, in the Buyer's sole discretion.

Basically it's about the same cost but includes everything needed so I didn't have to pay extra for a dialer, lists etc. 

EDUCATE YOURSELF - yes, it will take time, but will lead to a selection that better meets your expectations & avoids potentially costly surprises!

The new investment earns $24,000 a year, but the cost of the mortgage + the equity loan will be $22,332—and that’s before you account for taxes, insurance, maintenance, capital expenditures, vacancies, etc.

Call it $600k with closing costs and reserves, so a $600k raise.

Add insurance costs to your numbers and plan for the increases. 

You'll also want to ensure you have a good property manager to look after the upkeep of the property if you are not there to notice anything deteriorating or which may need attention.Creating an LLC in California could cost you a minimum tax of $800 every year.

Other franchises are reputable, but a fraction of the cost.