Val, here's an old post with a lot of good information about MTHFR viewtopic.php?f=85&t=40425&p=231954&hilit=mthfr#p231954
and yes, MFM and perinatologist are the same thing, here's a link to find one in your area - https://smfm.org/default.cfm
- I've been told that you're likely to get better results if you just put in your state. Especially look for docs who have hypertensive issues in pregnancy listed in their interests.
Also, we can't share doctor names on the forums, but if you'll share what state you're in other members might be able to make suggestions via private messaging.
Your family history is really interesting and a little scary, I really hope the "different dad" will make a good difference in your case!
Autoimmune disorders can be correlated with increased risk of preeclampsia - I believe IBS can be considered an autoimmune condition?
I know this is a lot of information - I hope it's helpful!