These include "this is a crime-free property," "smoke-free," how long a guest can stay and how frequently (sometime the guest isn't a guest but someone who has moved-in permanently), pet policy, specifics on reporting maintenance, and more. 

We went to support immediately, and were first told that they were just 90 day suspensions when the notice clearly said permanent.

the Con with FHA is there is  expensive  UFMIP  fee to pay (1.75% )  and also  monthly  mtg ins is  permanent and expensive .......the  con on the  conv loan is the rate isnt fixed and the  down payment is  slightly more  ......have you asked  about  fixed rate  95%  ltv  options  ?   

Or not cleaning my stove top for weeks and getting seemingly permanent residue stuck to it...

You shouldnt either if your goal is "they will never move out", permanent renters do not have the FICO or savings to buy.  

A few tips I've scraped up over the years:Often: Natural gas will run their infrastructure for no costElectric can run their infrastructure, and in some cases, rebate the costs of it back with each permanent meter installed within a given timeframe. 

Instead, I plan to invest the same amount into permanent Life Insurance policies (high premium low death benefit).

Yes you have to pay 1.5% extra upfront and PMI (that goes away at 20% or two years of payments), but with FHA - you have PERMANENT PMI (until you refi), extra costs/fees that get lumped intI your mortgage and certain inspection criteria.

It was a burnt down home that the owner had to sell (Owner moved in 2014 when it burned - decided to sell it quick in 2020 - I just had to re-grade it, clear a couple trees that grew up since it burned down, permits, permanent foundation so it would meet fha/usda, etc.Note: I am a mobile home dealer, a realtor, and i have contractors that i work closely with.

It can handle many permanent users (me, HK, maintenance, lots of other service providers) and it can handle all guest access each with individual entry codes.