In addition to joining the seller to the buyer at the hip for several years/decades when the seller wants a clean break, the properly-discounted, risk-weighted, money to be received by the seller is less than the immediate sale price.

For example, one of our tenants gets discounted rent from April-October for managing the landscaping. 

Then use section 121 tax exclusion.

Start small and scale up gradually as you gain experience and capital.Don't discount tax savings from rental while building your portfolio.

And some of the biggest repairs not for some time (roof 20, hvac 10, etc) .To me, building a new sfh should allow you to get a bigger discount than what is typically available these days unless you're really getting lucky. 

However, the use of the property as a personal residence by Person A might qualify Person C for a partial exclusion of capital gains if Person A met the 2-out-of-5-year ownership and use test before their death.

Many states have laws against this, but stop saying you are "helping them out", you are not, you are trying to take advantage of them to sell their home at a discount. 13.

., we use QuickBooks Online exclusively for all of our REI Clients (just bookkeeping; not property management).

Point is, yes, this strategy works and MY place works well for business travelers (individuals) and the occasional medical professional (who--no offense--ALWAYS asks for a discount :).

Why pay the remaining amount, when you just got yourself a 50% discount, right?