(I accept that this is not necessarily a lot of HFP members, but if you are travelling with your partner perhaps you could sign them up?)
The offer started on 1st April and has no closing date.
The bonus runs for 90 days from the date you join Marriott Rewards so do NOT join until just before your first stay!
You must set your Marriott Rewards account to earn miles, not points, and choose BA as your preferred partner.
You will earn:
1,000 bonus Avios on your first stay
1,500 bonus Avios on your second stay
2,000 bonus Avios on subsequent stays, up to a cap of 35,000 Avios within 90 days
These Avios are on top of the standard earning rate at most brands of 2 Avios per $1.
This could work out nicely if you doing a lot of short stays over the next three months. The bonus would max out at 19 stays over 90 days so, if you are staying in 2-3 hotels per week, the full 35,000 Avios may be achievable.
If you value an Avios point at 1p, you are getting the equivalent of £20 of value per stay from your 3rd stay which is a good return.
You must sign up via this special link. No other enrolment pages will qualify.
Note that this offer also applies to Air Canada, Asia Miles, Copa, Emirates, Iberia, Jet, Singapore Airlines and South African Airways. You can select your preferred airline on the registration page.