Illogical, irrational and not based on any known facts to support the theory that supplementing tenants rents retains them longer.

I'd also have her adult son do the same, but I would be more looking for history on his part and making sure he is a good tenant when he is staying with her and not be as concerned about the financial obligations on his end (unless it is needed to supplement the mother's).  

My plumber I use only charges $25 to set toilets but he is underpriced so I get a sweetheart deal - he has a good day job and this side money is to supplement his retirement   - I'll have to find a new one when he's ready to hang it up.  

Smartmove is the supplement after they pass your basic criteria.

Many companies require you to use their application forms (on-line or faxed/e-mailed), which we do and add our own supplemental pages for info they don't request but we want.Think about the qualities of a good tenant, what your criteria is, and design a process to weed out undesirables and look at credit, criminal landlord history.  

With that being said as long as I have the rental income to supplement the mortgage, with a little extra wiggle room, to me its worth it to stick to your guns in the event of any market dip.

So, to look at the untaxed income in the same light and with the same calculations, you should "gross up" the untaxed income 25%.So, when looking at 3X the monthly rent, you first add 25% to their untaxed income, then multiply that by 3.An example: In CA, SSI income including the state supplement, is $890/month.  

Please refer to HUD's website to read more about the Fair Housing Act.As @Ned Carey said, there are some additional jurisdictional-specific protected classes that some States and Counties decided to enforce to supplement the national Fair Housing Act, one of which is protection on the basis of income source (aka vouchers). 

Does anyone know when a carbon monoxide detector is needed to supplement a smoke detector?

He keeps the master with the master bath and rents out the other rooms to supplement his SSI income.