my friend is basically making plans to become a back-yard breeder to "get some of the money they've spent on their dog back", I've gently hinted to her that just because their dog is AKC registered with papers, does not mean that they can expect a high quality litter from her, nor that they'll get AKC register-able puppies from her. also, most breeders don't make a lot of money from the litters they breed (they make money if/when they produce high quality dogs that can compete in show rings, rally, and other AKC sponsored competions, but not from selling puppies they've bred.) We do own a dog we purchased from a breeder (after months of research and interviews to be sure we were dealing with a reputable breeder) they said their bottom-line was coming down to about $25 a puppy once they paid for vet bills(for puppies and mom), vaccinations, registration, food, etc.
Her dog is a large breed dog and is 5 years old, so middle-aged, I'm holding my tongue, but really this is a terrible idea. I can't believe my intellegent friend (she and her H are both lawyers) does not see that she is both putting her dog at risk for serious health problems and is perpetuating a cycle of back-yard breeding (low-quality breeding) that leads to both genetic defect with-in the breed and contributes to growing populations in shelters. It irresponsible and selfish, but I'm not sure it's worth losing a friendship over, so I'm trying really hard not to explode at her...wine.
Me: 28 H: 30
Married 07/14/2012
TTC #1 January 2015
BFP! 3/27/15 Baby Girl!! EDD:12/7/2015
Re: NMMR:vent-my friend is an idiot
TTC since 1/13 DX:PCOS 5/13 (long, anovulatory cycles)

Clomid 50mg 9/13 = BFP! EDD 6/7/14 M/C 5w6d Found 11/4/13
1/14 PCOS / Gluten Free Diet to hopefully regulate my system.
Chemical Pregnancy 03/14
Surprise BFP 6/14, Beta #1: 126 Beta #2: 340 Stick baby, stick! EDD 2/17/15
Riley Elaine born 2/16/15
TTC 2.0 6/15
Chemical Pregnancy 9/15
Chemical Pregnancy 6/16
BFP 9/16 EDD 6/3/17
Beta #1: 145 Beta #2: 376 Beta #3: 2,225 Beta #4: 4,548
www.5yearstonever.blogspot.com
My husband rescued his dogs from his ex-wife that was doing this to her dogs. When he got them the female was already pregenant. That litter they had a decent experience getting rid of the dogs. The second litter (and last) he ended up giving them away for free because he wasn't getting any interest in the dogs. Granted they weren't AKC certififed, but they were still cute dogs. Shortly after that we took the dogs to get fixed to prevent any more litters. The vet told my husband that one more litter WOULD have killed the female because her internal organs for delivery puppies where shot. Not may have, but WOULD have killed her.
My recommendation is if you still have the phone number from your breeder, call them and see if they would be ok with you giving your friend their number. This way she can find out from an experienced breeder the ins and outs of breeding. She may be more likely to take advice from someone who is already in the position they want to be in.
TTC since 1/13 DX:PCOS 5/13 (long, anovulatory cycles)

Clomid 50mg 9/13 = BFP! EDD 6/7/14 M/C 5w6d Found 11/4/13
1/14 PCOS / Gluten Free Diet to hopefully regulate my system.
Chemical Pregnancy 03/14
Surprise BFP 6/14, Beta #1: 126 Beta #2: 340 Stick baby, stick! EDD 2/17/15
Riley Elaine born 2/16/15
TTC 2.0 6/15
Chemical Pregnancy 9/15
Chemical Pregnancy 6/16
BFP 9/16 EDD 6/3/17
Beta #1: 145 Beta #2: 376 Beta #3: 2,225 Beta #4: 4,548
www.5yearstonever.blogspot.com
If that doesn't work maybe suggest they take a trip to a local animal shelter and see all the dogs that are going to be put to sleep while she brings more dogs into the world...