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Ready To Fight! Amber Portwood's Fiance Hires Lawyer In Child Support Lawsuits With Baby Mamas Matt Baier allegedly owes money for a total of eight kids.

Teen Mom OG star Amber Portwood‘s fiancé is lawyering up for a child support fight with the baby mamas for six of his at least eight kids, RadarOnline.com can exclusively reveal.

According to Indiana’s Madison Circuit Court records obtained exclusively by Radar, Matt Baier hired Indianapolis family law attorney Vanessa Lopez Aguilera to defend him in four of his five support lawsuits.

On her website, Lopez Aguilera claims she specializes in child support and paternity issues.

He’s going to need all the help he can get. As Radar previously reported, five women from states including Massachusetts, North Dakota, South Dakota, and Minnesota have filed suit in Indiana, where Baier, 44, lives with his reality star bride-to-be Portwood, 25.

The women are seeking an undisclosed amount of money for their collective seven children, all allegedly fathered by Baier.

He’s expected to attend a court hearing on March 22.

Baier also owes a sixth baby mama, Kelly Maguire Nunn, more than $10,000 for their 8-year-old daughter, Radar exclusively revealed last month.

Though Portwood didn’t seem to know that her man had more than two children, she’s still planning to walk down the aisle with him this fall.