Side note: Keep in mind some items are naturally low profit margin work and some are high profit margin work.

[sic] Those two things seem contradictory in nature to me.

Have/build adequate reserves.True example:I had an apartment fire that took out several garages on New Years and additional damage to two adjacent apartments from the Fire Department putting it out.

@Tuan Huynh I have several units that I medium term rent to travel nurses/doctors here in San Diego and in process of renovating and converting yet another...I personally love it...I thought I'd naturally have more vacancy than a long term rental but so far in this first year i've been trying this out, no vacancy yet.

It’s human nature to give business to folks you like, so put yourself out there face to face, not just on social media 

While most medical professionals are good about planning for the future, the nature of how contracts get filled and where that takes the traveler often happen last minute. 

One challenge when building small units is bringing in natural light as they tend to be long and narrow.  

This is merely the nature of the business. 2.  

Condotels that allow short term rentals, are considered to be non-warrantable condos for the single fact amongst a few others, that they are transient in nature, similar to a hotel.

Technically speaking, I am the only "natural person" in both entities.