My niece's house will be available as of July 1st for a long term (a year would be ideal) rental. Located in Corpus Christi on Calle 23 Sur, entre 5 y 10. it is a beautiful home, only a few years old, on a double-wide lot, with a spectacular backyard. House has a huge master bedroom with a luxurious ensuite, and the two other bedrooms, also have their own balconies and ensuites. There is also an office upstairs which could be used for guests. $1,800 US per month plus hydro. They will take care of the gardens and pool maintenance. Contact me if you're interested, and I'll put you in touch.
Here's the link for lots of pictures: