Is it obligatory to study the madhhab of the country I live in when desiring to study one of the schools of fiqh, or should I study the madhhab I am inclined towards? And is it obligatory for one who follows a madhhab to adhere to it in all jurisprudential issues, or is it permissible for him to deviate from it if he sees the truth in another madhhab?

A Muslim is not obligated to adhere to a specific jurisprudential school of thought (madhhab). He may study any school of thought he wishes and gain understanding in it, while avoiding fanaticism and slandering other schools. A follower (muqallid) is not required to follow his madhhab in every issue; rather, he may deviate from it if he knows that the evidence supports another opinion, either from the statements of verified scholars or through his own knowledge of the proofs and principles.