I know that by law (regardless of what a lease may say) landlords are supposed to provide basic amenities (hot water, electricity) to renters, but what are the timelines that such services need to be made available to the renter when there is a plumbing or electrical failure? 

I actually use a site that verifies all pets/service animals/emotional support animals ADA/ Fair Housing guidelines.

Higher then 1 means there is more room to still pay debt service if net operating expenses dropped for any reason. 

@Tuan Tran Total gross rent per year minus expenses (not debt service) equals Net Operating Income (NOI).

Prompt, quality service, good communication, good pricing.

I am pretty sure you can get a data plan from any service provider. 

Services You Cannot Shop For $672Appraisal Fee $550 Credit Report $73 Flood Certification $10 Verification Fee $39C. 

Affordable prices and booming economy and GROWTH:The region has been Virginia’s fastest growing for five consecutive years, with a population of 338,000.A highly skilled and expanding labor force of more than 1 million resides within a 40 mile commute.Strategically located just 35 miles south of the nation’s capital and 35 miles north of Richmond, capital of Virginia.Over 47 miles of Interstate-95 serve the region, carrying 120,000 cars per day.Excellent rail service is easily accessible, including Virginia Railway Express’s commuter service and Amtrak.

So that I can service my buyers correctly.

Specifically, if you’re looking at seller financing, assuming buy and hold investing, comparing the 2 offers below 1.Seller Finance: $250K, 5% down, 30yr @ 2.5% = $11,261 yearly debt service2.Seller Finance: $184K, 5% down, 30yr @ 5% = $11,260 yearly debt service Over the life of the loan, the total cost is the same, the only difference would be the ratio of interest to principal in the total payment.