Keeping it friendly and low intensity is more likely to be successful.I recently offered to completely replace my neighbor's fence next to my rental and they said "No".

note if we sell the primary residence, it is very likely we will not need mortgages to buy smaller rentals as we would use that mostly.Though I take your point on keeping it. our house was a new construction (3 years old) though so possibly low maintenance risk to keep for a rental. 

Multifamily doesn't need any more pressure/demand since cap rates can really get low when too many people pile in, but I have to say that commercial real estate (including large MF) and other types of passive investing (mobile home parks, storage, etc.) can really make like much easier.

Personally I like keeping my properties that I know are successful and have low maintenance.

My trust threshold is very, very low.

Quote from @Jaycee Greene: Assuming you pay asking price, I'd estimate the down payment for something like that using a hard money loan (HML) would be around 40% of the purchase price and your monthly payment would be $2,600 with an interest rate in the low 7% range (probably need a 700+ credit score to get that).

The type of the neighborhoods where his properties were located didn't fit in with my plan but he did well and the purchase costs were low.

This is all indicative of a low interest rate environment. 

Low Risk: TDAs are insulated from market volatility, offering peace of mind.4.

Her health is OK, but it's going to drop quickly if we don't find a way to get her active and lose some weight.