First, if you claim to recognize a synonymous doublet the burden is on you to show that the phrase is a doublet. I have heard of “manner and form” or “ways and means”, but never “by any means or in any manner”. I cannot prove a negative; I cannot prove the absence of a synonymous doublet; you must prove the presence of one.
Second, if the words “means” and “manner” are synonyms or part of a phrase, it is most likely that the phrase as a whole means “in any way”. You appear to claim that both refer to the “financial resources” sense of “means”, but such a definition does not appear in any dictionary I could find.
Moving from my own knowledge to the internet, a general search for “by any means or in any manner” shows that the phrase is in fact used in multiple laws. Let’s look at the top results (bear in mind that I am in Florida and my search reflects that):
[ul][li]Fla. Stat. 836.11(1):[/li]“It shall It shall be unlawful to print, publish, distribute or cause to be printed, published or distributed by any means, or in any manner whatsoever, any publication, handbill, dodger, circular, booklet, pamphlet, leaflet, card, sticker, periodical, literature, paper or other printed material which tends to expose any individual or any religious group to hatred, contempt, ridicule or obloquy unless the following is clearly printed or written thereon:[…]”
[li]Uniform Commercial Code § 2-511(2):[/li]“Tender of payment is sufficient when made by any means or in any manner current in the ordinary course of business unless the seller demands payment in legal tender and gives any extension of time reasonably necessary to procure it.”
[li]38 Fed. Reg. 22023 (August 15, 1973):[/li]“No person shall at any time, by any means, or in any manner, transport any migratory game bird[…]”
“No person shall at any time, by any means, or in any manner, export or cause to be exported any migratory game bird[…]”
“No person shall at any time, by any means or in any manner, take, possess, transport, or export any migratory bird[…]”
“No person shall at any time, by any means or in any manner, import, possess, or transport, any migratory bird[…]”
[li]50 CFR 20 which codifies the above federal regulations. Shows up in appendixes to books on Google, here and here.[/li][li]From 1922 periodicals accessible through Google Books, two reproductions of the same 1922 bill (which is similar to the 1939 Federal Seed Act):[/li]“[…]any seed which by any means or in any manner, is represented or indicated as conforming to the standards[…]”
“to ship or deliver for shipment, or transport, in commerce seed represented or indicated by any means or in any manner as conforming to the standards[…]”
“That any seed represented or indicated by any means or in any manner as conforming to the standards[…]”
“[…]that any seed is represented or indicated by any means or in any manner as conforming to the standards[…]”
“[…]who shall represent or indicate by any means or in any manner that any seed conforms to the standards[…]”
[li]An Act to reduce into One Act and to amend the Excise Regulations relating to the distilling, rectifying, and dealing in Spirits 1860, c. 114. Available at https://books.google.com/books?id=BqFUAAAAcAAJ&pg=PA856&lpg=PA856&dq=%22by+any+means+or+in+any+manner%22&source=bl&ots=8Z38YFcXpF&sig=ACfU3U2-nmh1oT4O2cGABU3LIqe3nFNGZQ&hl=en&sa=X&ved=2ahUKEwjTrtnU6YjnAhWuwVkKHRYZD_oQ6AEwCHoECAcQAQ (Accessed: 16 January 2020):[/li]XXIX: “[…]if the Officer shall by any Means or in any Manner whatever be prevented from ascertaining the Quantity and Gravity[…]”
[li]K.S.A. 32-1008(b) (2018): “It is unlawful to take, buy, sell or offer to sell by any means or in any manner any migratory bird[…]”[/ul][/li]I believe all of the above examples support my interpretation, which is that the phrase “by any means or in any manner” means “in any way”. I am now even less convinced that Fla. Stat. 672.511, which is identical to UCC 2-511, somehow uses the same phrase as a synonymous doublet meaning “with any financial resource”.
~Max