The phrase "signed and completed" is correct and usable in written English.
This phrase is often used to signify that a document or form has been both officially signed and all required fields have been completed with the necessary information. For example, "Once you have signed and completed the contract, you can submit it to the office."
Later in the year, he signed and completed Shafi's comedy film with Asin, Majaa, in less than five months.
To apply for a visa, you will have to bring a passport, two color photographs of the applicant, a correctly signed and completed visa application, and any documents you have related to your move, such as job relocation papers, etc. Visit the doctor and receive any necessary vaccinations and any health certificates you may require.
The second experimenter asked the participant to sign and complete one of the following two contracts (based on Lopatka & Rachman, 1995) depending on their group assignment.
ART-naïve patients were then asked to sign and complete a consent form before the interview took place in a private area in or outside the clinic.
Get a signed and properly completed voucher if you are entitled to help with the cost of spectacles.
And as he starting shedding pounds, he signed up and completed the New York City marathon in 2008.
Candidates signed up and completed a screening process (described below) on a rolling basis throughout 2012.
7) Relatives' signed consents and completed baseline surveys will be returned to the Michigan Department of Community Health-Genomics PrograMichigan Department of Community Health-Genomics
Signed consent and completed surveys related to participants' demographic characteristics were obtained during focus group interviews.
Parents signed consent and completed the proxy-report at home, then returned them to the school.
During the remaining months of winter he worked on the full orchestral score, which he signed and dated as "completed in Clarens, March 8, 1913".
