Md. Code Ann., Hous. & Cmty. Dev. § 16-201
(a) Montgomery County may provide by local law for the county's guarantee of the principal and interest on bonds that the Montgomery Commission issues:
(2) to finance wholly or partly:
(b) When a mortgage loan is financed partly by bonds guaranteed by Montgomery County and partly by bonds not so guaranteed, the part of the mortgage loan that is financed by bonds not so guaranteed shall be insured by:
(3) a private mortgage insurer that is:
Added by Acts 2006, c. 63, § 2, eff. Oct. 1, 2006.