That's not a profit producing activity for a Broker / Property Manager as 99% are tire kickers and the ones who will buy will buy without going on a date with you. 

Ignore seller finance for a second...Can you buy a house, put 20% down...yes.

@Polat Caglayan very ambiguosu question, but read the helpful info below to guide your next set of questions:)-------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Does anyone have much success buying SFH with seller financing? 

I'm looking to purchase a single family home as an investment property (buy and hold strategy).

Do you want to be solving tenant issues, buying properties, problems at work, etc. 

As a broker in a wholesale market, I "buy" a loan from a lender at a discount and mark it up for my profit.

I need to update my deal profile but I moved here 2020 first buying a house hack and then slowly buying one rental a year until the last year and a half.

Investment Info:Small multi-family (2-4 units) buy & hold investment.

I can't remember the cost, not too bad, but no phone callsI sent out 1,000 mailers (letters) I designed in envelopes a week for a couple of years and made a ton of money buying properties using "creative finance" some call subto.