Thats what most Dominicans do and I have had 4 with only a bill of sale signed by previous owner at lawyers office. Not all were from original owner. As long as you have the original matricula. not my ideal way to do things but "when in Rome"I bought a new bike in 2017 from Papaterra, took them a year and many visits of reminders to get my matricula...!
I was thinking the next used bike I buy, maybe just go to a lawyer and get the contract of sale and leave it at that..., I might survive with marticula in someone else's name, just pass on his docs when it comes to selling it, can still get insurance and ride around, do you foresee much issues like that...?